What is the U.S. Senate? Learn about senators, how bills become laws, where senators work, and more. Descriptive main text, full-color photos, fast facts, and callout definitions work together to supp
Parrots can do more than just mimic human speech. These colorful, sassy birds often mate for life, and some parrots can live 90 years or more. Learn more about these intelligent birds.
Spiders are famous for their complex webs, but that's not how all of these eight-legged critters catch food. Some chase prey on the ground. Others hide and grab bugs that come too close! Excite kids'
Dig in the dirt and you'll find . . . worms! But did you know that many live underwater? Or that some can grow as long as 9 feet? Excite kids' natural curiosity with this Smithsonian Little Entomologi
For readers of Don't Push the Button and Press Here comes an all new interactive story full of humor and sweetness. Always More Love is a heartwarming title and fun experience for families to share to
Parents, sisters, brothers, friends, and teachers are just some of the people in children's lives. Bring these words about people to young learners, and watch their vocabularies grow! Words are carefu
What does the U.S. Supreme Court do? Learn about who can be on the Supreme Court, how they are chosen, where they work, and more. Descriptive main text, full-color photos, fast facts, and callout defi
Playgrounds, supermarkets, and libraries are just a few of the places kids might visit in a day. Bring these location words to young learners, and watch their vocabularies grow! Words are carefully ma
There's no better way to say "I love you" than with a sweet and heartfelt animal pun! I Love You Like No Otter combines the evergreen message of love with trendy, charming animal puns, making it the p
Dive and dunk! Slide and slither! Verbs and motion go hand in hand. Bring verbs to young learners, and watch their vocabularies grow! Words are carefully matched to engaging photos that will keep chil
Bon appetit! With the popularity of kids' cooking TV shows, more kids are wondering what it's really like to be a chef. Readers will learn about different types of chefs, food prep and creation basics
Slime. Ice cream. Crayons. Kids come across these things and more in everyday life. Bring familiar and favorite nouns to young learners, and watch their vocabularies grow! Words are carefully matched
The Ancient Egyptians are famous for their pyramids and mummies, but how do these ancient items impact your life today? From hieroglyphs evolving into emojis and kohl around the eyes evolving into eye
Fluffy. Soft. Scaly. Kids encounter many textures in everyday life. Bring texture words to young learners, and watch their vocabularies grow! Words are carefully matched to engaging photos that will k
Our farmers' market is a busy place! Lots of community helpers work at the farmers' market. Readers will learn about who works at a farmers' market, what the workers do, and what makes a farmers' mark
Flamingos, jack-o'-lanterns, and six other fun, non-standard measuring units demonstrate the math concept of height. Through the use of whimsical composite photos and a hint of text, pre-readers learn
In the wild, animals use teeth, claws, and other natural weapons to attack their prey. On the battlefield, soldiers need weapons to fight the enemy. Military forces have often looked to nature for ins
Pets! We love them, and we take good care of them. Learn all about what dogs need to be happy and loving pets. Las mascotas Las amamos y las cuidamos mucho. Aprende todo sobre que necesitan los Perros
Llamas, hot dogs, and six other silly, non-standard measuring units demonstrate the math concept of weight. Pre-readers learn the weight of a car, a hummingbird, a burger, and more through the use of
Schools are busy places! Lots of community helpers are needed to make a school run smoothly. Readers will learn about who works at a school, what the workers do, and what makes a school special. Simpl
How much do you know about Rosa Parks? Find out the facts you need to know about this activitist in the civil rights movement. You'll learn about the early life, challenges, and major accomplishments
Parks are important places in our community. It takes many community helpers to keep a park clean and beautiful. Readers will learn about who works at a park, what the workers do, and what makes a cit
The post office is an important place in our community. Many community helpers work at the post office. Readers will learn about who works at a post office, what the workers do, and what makes a post
In science fiction, flying cars let people soar over traffic jams and get to where they're going quickly. How could a vehicle that both flies and drives be created? Scientists' ideas for this involve
All the students love Mr. Kazarian the librarian. He makes learning fun, and his library is their favorite place to hang out. What they don't know is that Mr. K is actually an alien, sent to earth to
Red, green, purple, and yellow! Colors make our world so vibrant! Bring color words to young learners, and watch their vocabularies grow! Words are carefully matched to engaging photos that will keep
How much do you know about Booker T. Washington? Find out the facts you need to know about this famous teacher and leader. You'll learn about the early life, challenges, and major accomplishments of t
Eight outside-the-box measuring units, from ducks to donuts, introduce pre-readers to the math concept of volume. Wonderous composite photos and a dash of text illustrate the volume of a bus, a bathtu
In science fiction, invisibility cloaks let their users vanish from sight and sneak around unnoticed. How could one of these stealthy pieces of clothing work? Scientists have some ideas, which involve
How much do you know about Harriet Tubman? Find out the facts you need to know about this conductor on the Underground Railroad. You'll learn about the early life, challenges, and major accomplishment
Introduce pre-readers to the math concept of length with eight goofy, non-standard measuring units, including kittens, toy airplanes, and gumballs. Delightful composite photos and a sprinkling of text
Many animals, both big and small, sleep through long, cold winter months. Learn the process of hibernation and different ways animals adapt to survive in harsh climates.
What does a college have to do with presidential elections? If it's the electoral college, a lot! Readers learn all about the electoral college and how it plays a part in our elections.
高維因子模型領域的前沿研究，大數據研究的重要工具，填補國內該研究領域空白。高維因子模型是當前計量經濟學中的一個重要模型。以美國美聯儲前主席Ben S. Bernanke、哈佛大學教授James H. Stock以及普林斯頓大學教授Mark M. Watson為代表的歐美學者，在廣泛的實證研究中發現，經過高維因子模型增廣的計量經濟學模型在宏觀經濟預測(Stock and Watson, 2002,
Shortlisted for the Waterstones Children's Book Prize, the Federation of Children's Book Groups Prize and longlisted for the 2015 Carnegie Medal, Kim Slater's outstanding debut, Smart, is moving and c
Enjoy a festive treat from Teddington's wildest family - packed with jokes, puzzles and activities!Who hides in the bakery at Christmas? A mince spy!What happened to the hyena who swallowed an Oxo cube? He made a laughing stock of himself!Merry Christmas! The Bolds are back with a bumper book of jolly japes. It's packed with rib-tickling jokes and puzzles including wordsearches, crosswords, mazes, riddles and spot the differences to keep kids entertained long after the Christmas presents are unwrapped!
Lonely Planet: The world's leading travel guide publisher Lonely Planet's Venice & the Veneto is your passport to the most relevant, up-to-date advice on what to see and skip, and what hidden discov
Provide young children a path to academic success with Top Student! This colorful activity book provides hundreds of creative and fun activities and practice pages that motivate young children to lear
From the top-ten bestselling author of Beneath a Frosty Moon, Rita Bradshaw, comes One Snowy Night, a sweeping family saga set between the two world wars in the north-east of England.It’s 1922 and the
