Test Pattern Generation Using Boolean Proof Engines

Offers a visual history and glorious celebration of all things train and track. This book traces the history and role of trains from steam engines to diesel engines and high-speed bullet trains. It is

How scientists changed the world, one breakthrough at a time. From the discovery of fire and the invention of the wheel to lunar landings and atoms, this book tells the extraordinary story of science and how it changed our world--one breakthrough at a time. Find out how history's most ingenious and daring scientists solved mysteries that had puzzled the ancient world for millennia, triggering an age of discovery that gave us telescopes, flying machines, steam engines, antibiotics, electricity, radio, space travel, and computers. Discover the amazing men and women who challenged conventional thinking and put their lives at risk to learn about everything from planetary orbits and gold to germs, gunpowder and radioactivity. What's the Point of Science? explains in super-simple terms how science really works and why it brought the world out of the dark ages. It's packed with surprising facts, tales of ingenuity and endeavor, and beautiful hand-drawn illustrations that bring the human story

Learn all about the fascinating world of insects--from bees, to butterflies, beetles, and more. Grab your magnifying glass and head out to discover all about insects-- their different types, body structures, and behaviors. Filled with eye-catching images and bite-sized information, every young nature enthusiast will marvel at the mind-boggling facts about these adaptable creatures. The book covers the seven major insect groups and includes profiles for more than 40 amazing insects, such as the stag beetle, monarch butterfly, and honeybee. Dive into their brilliant world and learn how some insects blend in with their surroundings. Discover how some can survive in different environments, while others can defend themselves against predators using clever tactics. Explore the many ways in which insects help humans, and the crucial role they play in pollination and maintaining a balance in the ecosystem. My Book of Bugs is a wonderful introduction to insects and their many incredible feature

Discover the wonders of our rocky planet!This amazing deck of cards welcomes you to Earth's extraordinary minerals and gems, from sparkling emeralds to igneous rocks formed deep inside the Earth’s molten core. Stunning pictures and fast facts enable you to grasp a wealth of knowledge in a fun way. Each card contains snappy and accessible information, displaying each rock or mineral in dazzling detail. The front of the card shows the rock with a clue of what it is. The back reveals the answer, plus a dataset of essential information, ensuring you can recognize sedimentary from sandstone, metamorphic from marble, and pyrite from pearl. You’ll discover the unique qualities of each material, together with how it is used in art, industry, architecture, and science. You can use the cards to test your own knowledge, or how about using them to play a guessing game, quiz, or competitive comparison game with a friend? Our World in Pictures: Rocks & Minerals Flash Cards are packed with informat

From small pets to large predators, discover how cats use their whiskers, senses, paws, claws, and more. This essential guide explores common cat characteristics and features iconic members of the cat family – find out why male lions have manes and how stripes on a tiger’s coat help it hunt. Read fascinating myths and legends of cats through history, view cat artifacts from ancient civilizations around the world, and learn how to identify domestic cat breeds as well as how to care for your pet. Eyewitness Cat introduces a much-loved pet alongside its wild family members in the animal kingdom. Using striking full-color photographs and illustrations, discover cat behavior, characteristics, big cats, domestic cat breeds, and much more along with amazing facts, infographics, and statistics to see cats as never before. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seeke

Make, mend, and customize your own wardrobe with this highly photographic beginner's guide to machine sewing.Discover how to read a pattern, use a sewing machine, and sew basic stitches, seams, and he

Celebrate the festive season with Pok幦on. Packed with cool facts and awesome activities--it's the perfect present for the ho-ho-holidays! Discover the Pok幦on who love a sparkly surprise, can rustle up a feast, or will make you shiver with their icy skills. Have fun spotting Squirtle in a snowball fight, or Pikachu in a cute woolly hat. Plus, you can test your Pok幦on skills with cool quizzes, puzzles, and games. Pok幦on Happy Holidays has everything you need to make the winter season even more merry!

A brilliant quiz book for clever kids – put your knowledge about planet Earth to the test and dazzle your family and friends with your brainpower!Can you find the Red Sea, Black Sea, and Yellow Sea on a map? Do you know what makes the Gobi Desert different from the Sahara? No? Then this is the book for you!Earth Knowledge Genius! is packed with more than 60 topics, including the highest mountains, largest deserts, most extreme weather, breathtaking natural wonders, and much more! As you hop from one continent to the next, you will not only learn more about our fascinating world, but will also have fun in this brilliantly entertaining quiz book for kids and the whole family. The pages are packed with eye-popping pictures – but do you know what they show? To help you, “Test Yourself” boxes list what you’re looking for. With three levels of difficulty, the challenge gets harder as you work your way from Starter, to Challenger, and finally the truly tricky Genius category. If you need it,

How did they make that using LEGO® bricks?Find out! Meet the professional builders behind some amazing LEGO® models and learn all about how these creative experts make masterpieces using LEGO bricks.

Dive into our planet's largest and least explored world in this stunning encyclopedia of whales, waves, wrecks, wind farms, and everything oceanic!Using 3D illustrations and a level of detail you can'

This book empowers children by providing an affirmation for every single day of the year from January 1 to December 31.I am strong. I am brave. I can handle anything. Using the power of positive think

Explore the laws and theories of physics in this accessible introduction to the forces that shape our Universe, our planet, and our everyday lives. Using a bold, graphic-led approach The Physics Boo

Fourteen incredible 3D printing projects for kids to design and print their own toys, gadgets, models, and ornaments without the need for a 3D printer at home. Using freely available online 3D modelli

Stir up some sticky slime, build a Solar System with rubber bands, power a speed boat using soap, and construct an erupting volcano, all with Home Lab, exciting experiments for budding scientists. Inc

A new look at a new world of wine from a new generation of wine writers. Do you like to enjoy fine wine but want some down to earth recommendations and honest information? Written by over 30 new voice

Follow our ever-changing skies and uncover the secrets of weather with this picture-packed meteorology book for kids.DK's best-sellingEyewonderseries is back and has been refreshed for the next generation of young readers ages 5-7.Get ready to chase the wind, ride the waves, and dodge lightning as you dive into this book about weather for children. Study the fascinating forces that shape weather and find out how clouds form, what makes thunderstorms rumble, and why the weather changes every season.This picture-led reference guide will take you on a visual tour of the changing weather. Stay-at-home explorers will feel inspired by the dramatic photographs, up-to-date information, fact-packed pages and a brand-new "eyewonder" feature with fascinating weather stories, where knowledge meets real-world application.In this newly revised weather book for kids, you'll find:Fully updated and revised content for children starting to develop a passion for science.Eye-catching photographs that grab

Discover how to identify flowers, where to find them, and other details about more than 100 flowers from around the world. Compact in size yet brimming with information, An Anthology of Flowers explores a vast variety of blooms, from exotic blossoms to iconic favorites. Learn to easily identify different species using detailed annotations, vivid illustrations, and unique descriptions of each flower. Featuring colorful photographs and vibrant illustrations, this book is a treasure trove for budding botanists, nature enthusiasts, and curious readers seeking an informative flower identification book. Whether you're out exploring or flipping through its pages at home, An Anthology of Flowers is sure to bring the natural world to life.

DK’s best-selling illustrated encyclopedia series explores the fantastical world of myths and legends. Discover stories from myth and legend as you've never seen them before through incredibly detailed 3D illustrations in this encyclopedia for children aged 9+. Knowledge Encyclopedia’s clear explanations, illustrations, photographs and 3D images will engage children in complex subjects.Find yourself transported to a realm of myth and legend with this perfect gift for anyone who loves stories of gods, monsters and heroes. This all-encompassing myth encyclopedia for kids offers:An impressive collection of facts, charts, timelines and illustrations. A visual approach using illustrations, photographs and extremely detailed 3D CGI images.Clear explanations and retellings of different myths and legends from around the world. Children can explore mythology in a new and exciting way through spectacular computer-generated images of key heroes, gods, monsters and locations. This new book in the

DK’s best-selling richly illustrated encyclopedia series explores the wonderful world of science. Learn the ins and outs of science as you’ve never seen it before, through incredibly detailed 3D illustrations, in this encyclopedia for children aged 9+. Knowledge Encyclopedia’s clear explanations, illustrations, photographs, and 3D images will engage children in complex subjects.This impressively detailed encyclopedia uses awesome illustrations to show biology, chemistry, and physics in the world around us. This all-encompassing science encyclopedia for kids offers:An impressive collection of facts, charts, timelines and illustrations. A visual approach using illustrations, photographs and extremely detailed 3D CGI images.Clear explanations of physics, chemistry, and biology, as well as space exploration, the latest technology, wonderful wildlife, and our amazing bodies. Children can explore science in a new and exciting way. Learn about groundbreaking topics like looking inside a cell,

Learn all about the fascinating world of minibeasts - from bees to butterflies, beetles, and more. This book is a wonderful introduction to the seven major insect groups and includes profiles for over 40 amazing insects, such as the stag beetle, monarch butterfly, and honey bee. Grab your magnifying glass and head out to discover all about insects - their different types, body structures, and behaviours.Filled with eye-catching images and bite-sized information, young nature enthusiasts aged 5-7 will marvel at the mind-boggling facts about these adaptable creatures. This informative bug book for children offers:Clear and friendly text on bugs and characteristics using annotations and straightforward text. Fact files on more than 40 species, with top-trump style comparisons and digestible information.An introduction to new and interesting information in this successful series for young learners. My Book of Bugs is an engaging and informative introduction to insects, with age-appropriate

DK’s best-selling richly illustrated encyclopedia series explores the wonderful world of transport. Knowledge Encyclopedia: Transport! uses incredibly detailed 3D illustrations to show children aged 9+ everything they need to know about how vehicles work. Children will find themselves totally absorbed in complex subjects with the Knowledge Encyclopedia series, made clear through engaging explanations, intricate illustrations, vivid photographs, and striking 3D images.Meet hundreds of vehicles that float, fly, or speed across the land, including the record breakers - the fastest, largest, longest, and strangest modes of transportation ever to zoom, sail, or soar. This all-encompassing encyclopedia for kids offers:- A whole collection of facts, charts, timelines, and illustrations that cover a vast range of transportation. - Complex subjects that are explained using amazingly detailed CGIs that entice young readers to dive in and explore.- A visual approach using illustrations, photograp

Discover fascinating facts about communication in all its forms, from around the world and over timeEngaging factual writing introduces young readers to the most interesting aspects of languages, how they evolve and change over time.Humans’ use of language is one of our distinguishing features. Language allows us to communicate what we think, what we want, what we feel, and what we have learned. Some 100,000 years ago, humans began speaking. Since then, we have developed nearly 7000 languages. Languages are living things; they evolve and change over time. They even travel! People carry their language with them and spread it. Large language families even have their own family trees, such as Spanish, French, English. Different languages can be mixed and combined to create new languages with similar words, pronunciation, and grammar rules. Languages can even become extinct if they are not shared and learned by each new generation. Spoken languages are not the only way we communicate. Sign

An accessible guide to the most important ideas and developments in the history of architecture, and the people behind themDiscover the key architectural concepts behind the world's most incredible buildings and structures.The Architecture Book goes beyond other architecture books to analyse not just buildings themselves, but the ideas and principles that make each of the featured structures key to the history and evolution of our built environment.From ancient and classical architecture through Medieval, Gothic, and Renaissance buildings, the explosion of Baroque and Rococo, and the 19th-century "battle of the styles", to the emergence of modernism, postmodernism, and the glittering skyscrapers of the 20th and 21st centuries, the book traces the evolution of construction. Using stunning infographics and mind-maps, it shows how architects throughout history have pushed boundaries and created innovative buildings. Examples of architectural movements and styles are drawn from all over th

Visit one of the most incredible natural environments, meeting the Amazon’s plants and wildlife, and its peopleA unique, beautifully illustrated guide to the beauty and diversity of the Amazon – the rainforest and the river, its flora and fauna, and the people who live in the region. Applying the award-winning Eyewitness formula to the subject of the largest and most biodiverse tract of tropical rainforest in the world, and the vast river that winds its way through it, this book profiles everything from the birds, animals, and insects that live there to the nine South American countries it extends across. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature – fascinating first-hand accounts from experts in the field.

These Wonders of the World highlight astounding ancient architecture, the history of civilization, and the beauty of our planet.Highlighting more than just the Seven Wonders of the World – the Pyramids of Giza, the Hanging Gardens of Babylon, the Temple of Artemis, the Statue of Zeus, the Mausoleum at Halicarnassus, the Colossus of Rhodes, and the Lighthouse of Alexandria – DK Eyewitness Books: Wonders of the World showcases more than 50 architectural feats and natural treasures. From human-made landmarks such as the Statue of Liberty to record-breaking natural marvels like the River Nile, this book takes kids on an incredible journey around the world's most spectacular sights. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness" feature – fascinating fi

North and South enter a conflict of more than 50 battles – discover how tensions exploded into a war that lasted four years.This book takes you through the history of one of the most important times inUS history. Find out how Abraham Lincoln became president in 1860 and why hewas assassinated. Discover the horror of enslaved life, and about the Underground Railroad that helped its victims escape. Eyewitness American Civil War shows both sides of the conflict in an equal light, allowing readers to consider all views. This museum-in-a-book uses striking full-color photographs of paintings, artifacts, and illustrations of battles, famous leaders, and much more along with amazing facts, infographics, statistics, and timelines to reveal this period of US history as never before. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fre

Dive into a watery world where many wonderful fish of all shapes and sizes swim, in rivers, lakes, and oceans.DK Eyewitness Books: Fish is an exciting and informative guide to the fascinating world of fish. Striking color photographs of tropical fish, eels, seahorses, and more offer a unique "eyewitness" view of the natural history of fish, how they behave, and how they survive. See the lethal jaws of a piranha, a porcupine fish "puffing up," how a dogfish swims, growth rings on a fish scale, what a fish looked like 400 million years ago, and a fish with legs. Learn how a school stays together, why some fish swim upside down, how a stingray stings, why fish need water to breathe, and much more. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature

Ideal for home learning, this simple and inspirational book has everything you need to get to grips with grammar and punctuation, and master essential reading and writing skills.Need help telling your adjectives from your adverbs? Struggling to work out what that poem is really about, or where to begin with your essay? Using short, straightforward explanations and clear graphics to shed light on the trickiest of topics, this is the perfect guide to understanding and using the English language.Illustrated examples make daunting grammar accessible and fun, and help develop an understanding that can be applied to school studies. Annotated texts complement concise, practical guidance to support students in developing sound analytical and writing skills. The carefully selected reading recommendations will inspire reading for pleasure, while clear links between topics will ensure that students not only understand language techniques but know how to apply them effectively.How to be Good at En

Discover how the migration of peoples has shaped the modern world.This beautifully illustrated book details the movement of people and cultures around the world – from the early migrations of Homo erectus out of Africa 50,000 years ago to modern refugee movements and migrations. Through vibrant photographs, illustrations, and maps, Migrations explores famous (and infamous) movements in history, from the Middle Passage and Trail of Tears to the California Gold Rush, the Italian diaspora, and the Windrush generation. While many traditional world histories focus on (mainly European) “exploration” and “discovery,” Migrations explores the story of each continent and focuses on cultures rather than conquest. Migrations highlights the human story and the positives: what has survived, not just what was destroyed. Migrations is a history book with a fresh perspective, focusing on a topic ever more relevant in the modern world: Where did we come from? And what brought us here?

What would Harry do?Famously charming, fabulously dressed, and unapologetically himself―there are so many reasons to want to be more Harry Styles. This book will show you how to channel this once-in-a-generation pop icon.Following his stratospheric levels of fame as a member of One Direction, Harry has carved out his own unique path in the industry as a solo artist, actor, and fashion icon. Harry’s approach to life, career, music, relationships, and style is inspirational to anyone who wants to subvert expectations, be authentically themselves, and treat people with kindnessBe More Harry Styles is the perfect gift for Harry Styles fans.

Become an expert on all types of weather and how and why they happen. Why does it rain? How hot is a bolt of lightning? What makes hurricanes form, and how does climate change affect the weather? What happens when a cold front rolls in? Become a meteorology expert and set up your own home weather station, and learn to read nature’s own signs of changing weather. Eyewitness Weather shows you what weather looks like, from a tropical storm cloud seen from above to close-ups of snowflake crystals. Learn about what weather scientists do, why weather works differently on the coast and inland, and much more along with amazing facts, infographics, statistics, and timelines to reveal this civilization’s secrets as never before. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and

Learn how NOT to believe what you see with this book of eye-popping pop-up visual tricks. From the classic "which dot is bigger?" or "is this line straight?" illusions to the first-ever 3D trick to appear in a book, Optical Illusions is packed with picture puzzles. Every illusion is set up to challenge what you think you see.There are hints and tips of how to approach the illusion, and then an explanation of how it works and why you were fooled (and you will be!). There are also flaps, tabs, and a decoder to test the answers, so you can check whether different-looking colours are actually the same, or if those lines really are wonky. All kinds of visual tricks are featured, including distortion, motion, colour and brightness, ambiguous illusions, impossible objects, hidden images...but the stars of the show are two large interactive illusions - the "thaumatrope" spinner that puts a bird in a cage, and a 3D perspective sculpture. Even though you will build it yourself and know which bit

The simplest guide to astronomy and stargazing!Grasping astronomy has never been easier. The awe of the night sky will soon turn into knowledge of the constellations, planets, and astrological phenomena!Bold graphics and easy-to-understand text make this visual guide the perfect introduction to astronomy and stargazing for those who have little time but a big thirst for knowledge. Inside you'll find:- Simple, easy-to-understand graphics that help to explain astronomy, space, and the night sky in a clear, visual way- The latest astronomical information on black holes, gravitational waves, the origin of the Universe, and the planets of the Solar System- User-friendly star-charts that guide you through the sky using brighter stars as "signposts" to locate harder-to-see objects- Essential advice on the practicalities of stargazing - from observing with the naked eye to using telescopesEach pared-back entry covers the essentials more clearly than ever before.

Become an eyewitness to the high-flying world of aircraft and the history of flight. This picture-led guide will take you on a visual tour of incredible flying machines. Children can learn all about the history and science of humanity's most incredible feat: flying! Find out about how technology made flight possible, which tools pilots use, and how taking to the skies has shaped human history.Throughout the pages of this children’s guide to aviation, you can expect to find: - A fresh new look; new photographs, updated information, and a new “eyewitness” feature. - A visual tour through the topic combined with bite-sized text. - Brand new eyewitness accounts from experts in the field.Eyewitness Flight gives a detailed overview of all things aircraft for kids aged 9+, including helicopters, gliders, zeppelins, monoplanes, biplanes, and even triplanes. Using full-colour photographs of different types of aviation, including an aircraft from Leonardo da Vinci's wing machines to jet airliner

Trace India’s journey through its space program, from its early skywatchers, the myths and legends, and the dreamers in a newly independent country, to the visionaries who continue to inspire generations to look towards the stars.In 1947, a newly independent India struggled to manage its new borders, limited resources, and a burgeoning population. Almost instinctively, its leaders turned towards the skies, looking up and beyond to see how they could use technology and space to help their people. This wasn’t a new endeavour, however. Skywatchers in ancient India had always looked towards the stars, mapping them, giving them names, and building myths. So, new India turned towards the stars once again - using satellites to help with agriculture, forecast weather, and build better communication. Today, India’s space program has morphed into something larger. The country looks towards the stars―not to sustain itself, but to explore, to reach the final frontier, and to take its own place amo

Imagine if you could travel back in time and walk the streets of the past. Where would you go first? Incredible History turns back time to reveal realistic reconstructions of the most incredible locations and exciting moments in history. You’ll feel the roar of the crowd in the Roman Colosseum, walk the ramparts of the Great Wall of China, and ride the first railways. Each story begins with an archaeological site or artifact. You’ll learn when and how it was discovered, and what it teaches us about how the people who lived at the site might have spent their days. Then, you’ll see the location recreated in jaw-dropping 3D detail. Using archaeological evidence, the people and places of the past will be brought back to life before your very eyes. With each page packed with fantastic facts and extraordinary pictures, Incredible History brings together the best parts of history and archaeology to recreate the entire history of the world.

125 comprehensive, easy-to-use cards for exam preparationA fantastic aid for exam preparation, these flash cards make biology crystal clear and will have you exam-ready in no time.Make biology super simple! These handy revision cards condense everything you need to know about biology into bitesize key facts and crystal clear diagrams. Studying for exams has never been so easy. Biology is explained in simple, user-friendly language, with colorful illustrations to help you grasp difficult concepts at a glance. Whether you’re catching up on lessons, doing homework, or revising for exams, these super simple cards will make you a biology expert in no time.

Get better at maths and numbers by realizing which math skills you already use in daily life, and learn new ones while having fun. Did you realize how much maths you are already using when playing computer games, planning a journey, or baking a cake? This book shows how to expand the knowledge you've already got, how your brain works things out, and how you can get even better at all sorts of maths. Explore amazing algebra, puzzling primes, super sequences, and special shapes.Challenge yourself with quizzes to answer, puzzles to solve, codes to crack, and geometrical illusions to inspire you, and meet the big names and even bigger brains who made mathematical history, such as Pythagoras, Grace Hopper, and Alan Turing. Whether you're a maths mastermind, numbers nerd, or completely clueless with calculations, train your brain to come out on top. This essential book explains the basic ideas behind maths, to give young readers greater confidence in their own ability to handle numbers and m

Find out how to use your birth horoscope to enhance and transform every area of your life. In Astrology, you'll see how to cast and read your own birth chart; how to interpret the zodiac signs, the su

Expand and explore your vocabulary. Discover a whole new vocabulary and never be lost for words again, with this comprehensive and detailed illustrated children's thesaurus, with synonyms and antonyms for more than four thousand main entries. This beautifully illustrated thesaurus for kids aged 9 years old and older is packed with:- A comprehensive, illustrated thesaurus created specifically for young readers and writers- Authoritative content from Collins is given the DK treatment to make the pages lively and the words meaningful for children- Fun and fresh illustrated "word features" to explore and expand on vocabularyThis colourful and insightful thesaurus contains more than four thousand entries, where each entry is supported by a definition and example sentence to help boost a child's confidence in using and choosing words.An imaginative mix of photography and illustration gives the book great visual appeal and is the perfect book for children who enjoy words; or who need a little