Machine Learning Algorithms for Problem Solving in Computational Applications

It’s known as the science of secrecy. Cryptography: the encoding and decoding of private information. And it is history’s most fascinating story of intrigue and cunning. From Julius Caesar and his Caesar Cipher to the code used by Mary Queen of Scots and her conspiracy to the use of the Engima machine during the Second World War, Simon Singh follows the evolution of secret writing. Accessible, compelling, and timely, this international bestseller, now adapted for young people, is sure to make readers see the past—and the future—in a whole new way.From the Hardcover edition.

From the New York Times bestselling author of Girl in Pieces comes a novel about love and loss and learning how to continue when it feels like you're surrounded by darkness that Karen M. McManus, the New York Times bestselling author of One of Us Is Lying, calls rare and powerful. Here is what happens when your mother dies. It's the brightest day of summer and it's dark outside. It's dark in your house, dark in your room, and dark in your heart. You feel like the darkness is going to split you apart. That's how it feels for Tiger. It's always been Tiger and her mother against the world. Then, on a day like any other, Tiger's mother dies. And now it's Tiger, alone. Here is how you learn to make friends with the dark. Stunning and beautifully written.-HelloGiggles A rare and powerful novel, How to Make Friends with the Dark dives deep into the heart of grief and healing with honesty, empathy, and grace. --Karen M. McManus, New York Times bestselling author of One of Us Is Lying and Two C

From the coauthor of the New York Times bestselling Illuminae Files comes the first book in a new series that's part Romeo and Juliet, part Terminator, and all adrenaline.On an island junkyard beneath a sky that glows with radiation, a deadly secret lies buried in the scrap. Seventeen-year-old Eve isn't looking for trouble--she's too busy looking over her shoulder. The robot gladiator she spent months building has been reduced to a smoking wreck, she's on the local gangster's wanted list, and the only thing keeping her grandpa alive is the money she just lost to the bookies. Worst of all, she's discovered she can somehow destroy machines with the power of her mind, and a bunch of puritanical fanatics are building a coffin her size because of it. If she's ever had a worse day, Eve can't remember it. The problem is, Eve has had a worse day--one that lingers in her nightmares and the cybernetic implant where her memories used to be. Her discovery of a handsome android named Ezekiel--calle

In a fallen kingdom, one girl carries the key to discovering the secrets of her nation's past--and unleashing the demons that sleep at its heart. An epic fantasy series inspired by the mythology and folklore of ancient China. "Perfect for fans of The Untamed. I loved it!" --Shelley Parker-Chan, bestselling author of She Who Became the Sun Once, Lan had a different name. Now she goes by the one the Elantian colonizers gave her when they invaded her kingdom, killed her mother, and outlawed her people's magic. She spends her nights as a songgirl in Haak'gong, a city transformed by the conquerors, and her days scavenging for what she can find of the past. Anything to understand the strange mark burned into her arm by her mother in her last act before she died.The mark is mysterious--an untranslatable Hin character--and no one but Lan can see it. Until the night a boy appears at her teahouse and saves her life.Zen is a practitioner--one of the fabled magicians of the Last Kingdom. Their mag

From the award-winning author of The Serpent King comes a beautiful examination of grief, found family, and young love, as two teens from rural Tennessee leave everything they know behind except each other.Life in a small Appalachian town is not easy. Cash lost his mother to an opioid addiction and his Papaw is dying slowly from emphysema. Dodging drug dealers and watching out for his best friend, Delaney, is second nature. He's been spending his summer mowing lawns while she works at Dairy Queen.But when Delaney manages to secure both of them full rides to an elite prep school in Connecticut, Cash will have to grapple with his need to protect and love Delaney, and his love for the grandparents who saved him and the town he would have to leave behind.

A princess in exile, a shapeshifting dragon, six enchanted cranes, and an unspeakable curse... Drawing from 'The Wild Swans' and East Asian folklore, this breathtakingly original fantasy from the author of Spin the Dawn is perfect for fans of Leigh Bardugo or Tomi Adeyemi.Shiori'anma, the only princess of Kiata, has a secret. Forbidden magic runs through her veins. Normally she conceals it well, but on the morning of her betrothal ceremony, Shiori loses control. At first, her mistake seems like a stroke of luck, forestalling the wedding she never wanted. But it also catches the attention of Raikama, her stepmother.A sorceress in her own right, Raikama banishes the young princess, turning her brothers into cranes. She warns Shiori that she must speak of it to no one: for with every word that escapes her lips, one of her brothers will die.Penniless, voiceless, and alone, Shiori searches for her brothers, and uncovers a dark conspiracy to seize the throne. Only Shiori can set the kingdom

THE INSTANT NEW YORK TIMES BESTSELLER • From the critically-acclaimed author of House of Salt and Sorrows comes a mesmerizing and chilling fairy-talesque novel about Ellerie Downing, a young woman in a small town with monsters lurking in the trees and dark desires hidden in the shadows―in Amity Falls, nothing is more dangerous than a wish come true. "Unique, enchanting, and haunting."―Brigid Kemmerer, New York Times bestselling author of the Cursebreaker series“Sweet, dark, and complex as wildflower honey.”―Hannah Whitten, New York Times bestselling author of For the Wolf“Small Favors is an eerie fairytale that I couldn’t put down.”―Alexis Henderson, author of The Year of the WitchingEllerie Downing is waiting for something to happen. Life in isolated Amity Falls, surrounded by an impenetrable forest, has a predictable sameness. Her days are filled with tending to her family's beehives, chasing after her sisters, and dreaming of bigger things while her twin, Samuel, is free to roam as

"A bold and expertly plotted page-turner." ―Courtney Summers, New York Times bestselling author of SadieFrom the mind of Kara Thomas, author of The Cheerleaders, comes a new thriller that about the secrets we hide from those we love most―even, maybe, our best friends. What happened that weekend changes everything.THREE BEST FRIENDS, A LAKE HOUSE, A SECRET TRIP ― WHAT COULD GO WRONG?It was supposed to be the perfect prom weekend getaway. But it's clear something terrible happened when Claire wakes up alone and bloodied on a hiking trail with no memory of the past forty-eight hours.Now everyone wants answers―most of all, Claire. She remembers Friday night, but after that . . . nothing. And now Kat and Jesse--her best friends--are missing.What happened on the mountain? And where are Kat and Jesse? Claire knows the answers are buried somewhere in her memory. But as she's learning, everyone has secrets―even her best friends. And she's pretty sure she's not going to like what she remembers.

Discover the backstory of new Stranger Things fan favorite Robin--the perfect read for anyone looking forward to devouring the fourth season on Netflix―now available as a paperback!High school is a monster, and it's eating everyone Robin knows. It's the beginning of sophomore year, and Robin's Odd Squad friends couple up, won't stop talking about college and their future careers, and are obsessed with trying to act "normal." Robin knows that game well--she's been pretending for years, hoping nobody would notice the sarcastic polyglot French horn player with a bad perm in the back of the room. But there's one aspect of her identity that she knows for sure doesn't fit in with her image--Robin likes girls.How is she supposed to be her true self in teeny-tiny Hawkins, Indiana? Robin is convinced the only way she can experience real life is by fleeing to Europe for the summer--aka Operation Croissant. But she has no money, no permission, and no one to share the adventure with--and it will t

As sweet as a macaron from Laduree, with writing as crisp as a freshly baked baguette, this romantic novel set in Paris about an American ballerina and a charming French boy is parfait for fans of American Royals and Netflix’s To All the Boys I’ve Loved Before.Mia Jenrow has always known she’s destined to be a professional ballerina. In fact, it’s in her blood―according to family legend, her too-many-greats-to-count-grandmother once danced for the Paris Opera and was painted by Degas himself! Her parents say it’s just a fantasy, but to Mia it’s so much more than that. It’s her fate. Mia is planning to spend a magical summer in France pursuing her dream, but as she pirou-ettes into Paris, she soon realizes it may be a bit more complicated than she hoped. For starters, there’s her rival, Audrey, who will stop at nothing to show her up. There’s her ballet instructor, whose impossibly high standards push her to the breaking point. And then . . . there’s Louis. Devastatingly, distractingly

This inspiring memoir, now adapted for young adults, chronicles Top Chef star and Forbes and Zagat 30 Under 30 phenom Kwame Onwuachi's incredible and odds-defying fame in the food world after a tough childhood in the Bronx and Nigeria.Food was Kwame Onwuachi's first great love. He connected to cooking via his mother, in the family's modest Bronx apartment. From that spark, he launched his own catering company with twenty thousand dollars he made selling candy on the subway and trained in the kitchens of some of the most acclaimed restaurants in the country. He faced many challenges on the road to success, including breaking free of a dangerous downward spiral due to temptation and easy money, and grappling with just how unwelcoming the world of fine dining can be for people of color. Born on Long Island and raised in New York City, Nigeria, and Louisiana, Kwame Onwuachi's incredible story is one of survival and ingenuity in the face of adversity. Praise for the adult edition of NOTES F

From the author of Words on Bathroom Walls―now a major motion picture―comes a romance in the spirit of Dear Evan Hansen about overcoming anxiety―and about finding love and friendship in unlikely places.★ “A masterpiece” ―Kirkus, starred review“Bad luck follows lies.” That was the first rule for life that Leo’s Greek grandmother, Yia Yia, gave him before she died. But Leo’s anxiety just caused a fight at school, and though he didn’t lie, he wasn’t exactly honest about how it all went down…how he went down. Now Leo’s father thinks a self-defense class is exactly what his son needs to “man up.”“Leave the Paros family alone.” That was Yia Yia’s second rule for life. But who does Leo see sitting at the front desk of the local gym? Evey Paros, whose family supposedly cursed Leo’s with bad luck. Seeing that Leo is desperate to enroll in anything but self-defense class, Evey cuts him a deal: she’ll secretly enroll him in hot yoga instead―for a price. But what could the brilliant, ruthless, for

From National Book Award Finalist Albert Marrin comes the moving story of Janusz Korczak, the heroic Polish Jewish doctor who devoted his life to children, perishing with them in the Holocaust. Janusz Korczak was more than a good doctor. He was a hero. The Dr. Spock of his day, he established orphanages run on his principle of honoring children and shared his ideas with the public in books and on the radio. He famously said that children are not the people of tomorrow, but people today. Korczak was a man ahead of his time, whose work ultimately became the basis for the U.N. Declaration of the Rights of the Child. Korczak was also a Polish Jew on the eve of World War II. He turned down multiple opportunities for escape, standing by the children in his orphanage as they became confined to the Warsaw Ghetto. Dressing them in their Sabbath finest, he led their march to the trains and ultimately perished with his children in Treblinka. But this book is much more than a biography. In it, ren

Perfect for fans of Morgan Matson and Netflix/Hallmark Channel rom-coms, this is the story of a girl who decides to give in to the universe and just say yes to everything, bringing her friendship, new

An American Muslim teen is forced to confront hatred and hidden danger when she is framed for a terrorist act she did not commit in this thrilling novel that explores Islamaphobia and white supremacy.

The first book in an epic new series about a princess hiding a dark secret and the con man she must trust to clear her name for her father's murder. In the Cyrilian Empire, Affinites are reviled

Return to the series BuzzFeed compared to Ready Player One with the third book in the fast-paced trilogy from New York Times bestselling authors Jason Segel and Kirsten Miller that’s perfect for fans

“Looking for your next big YA fantasy series? We’ve got our eye on this stylish blockbuster.” —Entertainment WeeklyProject Runway meets Mulan in this sweeping fantasy about a young girl who poses as a

"Anyone can break your heart--Jeff Zentner can also make you laugh out loud!" --RAINBOW ROWELL, #1 New York Times bestselling author of Carry On and Eleanor & Park From the Morris Award-winning author of The Serpent King comes a contemporary novel about two best friends who must make tough decisions about their futures--and the TV show they host--in their senior year of high school.Every Friday night, best friends Delia and Josie become Rayne Ravenscroft and Delilah Darkwood, hosts of the campy creature feature show Midnite Matinee on the local cable station TV Six. But with the end of senior year quickly approaching, the girls face tough decisions about their futures. Josie has been dreading graduation, as she tries to decide whether to leave for a big university and chase her dream career in mainstream TV. And Lawson, one of the show's guest performers, a talented MMA fighter with weaknesses for pancakes, fantasy novels, and Josie, is making her tough decision even harder. Scary

Perfect for fans of John Green's Turtles All the Way Down and Nina LaCour's We Are Okay, this is the poignant and uplifting story of Maeve, who is dealing with anxiety while falling in love with a gir

From the New York Times bestselling author of Dear Martin comes an honest and touching depiction of friendship, first love, and everything in between. Perfect for fans of Love, Simon and What If It’s

A laugh-out-loud, realistic portrayal of a freshman year in college for fans of Emergency Contact, Broad City, and The Bold Type.Getting in is just the beginning. Phoebe can't wait to get to college.

A teenage boy born in space makes his first trip to Earth in this engrossing sci-fi adventure for fans of The Martian from award-winning author Nick Lake. He’s going to a place he’s never been befor

The hilarious, poignant, and true story of one teen's experience growing up in America as an undocumented immigrant from the Middle East, perfect for fans of Mindy Kaling and Trevor Noah's books.“Very funny but never flippant, Saedi mixes ‘90s pop culture references, adolescent angst and Iranian history into an intimate, informative narrative that thoroughly defies current divisive view on immigration.”—The New York TimesAt thirteen, bright-eyed, straight-A student Sara Saedi uncovered a terrible family secret: she was breaking the law simply by living in the United States. Only two years old when her parents fled Iran, she didn't learn of her undocumented status until her older sister wanted to apply for an after-school job, but couldn't because she didn't have a Social Security number.Fear of deportation kept Sara up at night, but it didn't keep her from being a teenager. She desperately wanted a green card, along with clear skin, her own car, and a boyfriend.Americanized follows Sar

"File this book under A for Amazing." -Jay Kristoff, New York Times bestselling authorDiscover book two in the sci-fi space trilogy that Bustle described as "The 100 meets Illuminae" and Marie Lu call

For fans of Pretty Little Liars, Little Monsters is a new psychological thriller, from the author of The Darkest Corners, about about how when you're the new girl in town, you can't trust an

For fans of 13 Reasons Why and Girl in Pieces, this is a novel that shows the path to hope and life for a girl with mental illness. Seventeen-year-old Catherine Pulaski knows Zero is coming fo

"A magical tale unlike anything you've read before." —Bustle.com"[A] richly imagined 19th-century historical fantasy." —EW.com, A-The thrilling first book in a YA fantasy trilogy for fans

“Sorry, John Green fans, but McDaniel’s been making us cry . . . for decades,” says Bustle.com. Now, in her latest novel, as three high school seniors are in the midst of planning their futures, they

“We promise you’re going to love it.” —Teen Vogue.com on Autumn Falls Autumn’s Wish—book three in the AUTUMN FALLS series by Famous in Love star Bella Thorne—is perfect for fans of Girl Online, Meg Ca

This page-turning fantasy thriller introduces Julia—a thief and spy for hire. Witchcraft may be illegal in her world, but magic still rules. “The first book in the Witch’s Child trilogy has adventur

In Alaska, 1970, being a teenager here isn’t like being a teenager anywhere else. This deeply moving and authentic debut is for fans of Rainbow Rowell, Louise Erdrich, Sherman Alexie, and Benjamin Ali

For fans of The Maze Runner and The Fifth Wave, this debut YA novel from Hugo Award winner Will McIntosh pits four underprivileged teens against an evil billionaire in the race of a lifetime. No o

Seventeen-year-old Aidan Lockwood lives in the sleepy farming community of Temperance, Ohio—known for its cattle ranches and not much else. That is, until Jarrod, a friend he hasn’t seen in five years

The definitive biography of president Franklin Delano Roosevelt for young adult readers, from National Book Award finalist Albert Marrin. Brought up in a privileged family, Franklin Delano Roosev

In the city of Lovecraft, the Proctors rule and a great Engine turns below the streets, grinding any resistance to their order to dust. The necrovirus is blamed for Lovecraft's epidemic of madness, fo

#1 NEW YORK TIMES BESTSELLER - From the author of the multimillion-copy bestselling A Good Girl's Guide to Murder series comes a new blockbuster thriller about a road trip that turns deadly. Eight hours. Six friends. Five survive. Red Kenny is on a road trip for spring break with five friends: Her best friend - the older brother - his perfect girlfriend - a secret crush - a classmate - and a killer. When their RV breaks down in the middle of nowhere with no cell service, they soon realize this is no accident. They have been trapped by someone out there in the dark, someone who clearly wants one of them dead. With eight hours until dawn, the six friends must escape, or figure out which of them is the target. But is there a liar among them? Buried secrets will be forced to light and tensions inside the RV will reach deadly levels. Not all of them will survive the night. . . . With edge-of-your-seat tension and a gripping mystery, Holly Jackson has written another instant classic! And don

Mary never imagined spending her junior year with an existential crisis--but here she is, in this story of overachieving, growing up, and coming out, from the author of Girl Crushed and Never Have I Ever. Mary is having an existential crisis. She's a good student, she never gets in trouble, and she is searching for the meaning of life. She always thought she'd find it in a perfect score on the SATs. But by junior year, Mary isn't so sure anymore. The first time, it's an accident. She forgets to do a history assignment. She even crosses "history essay" off in her pristine planner. And then: Nothing happens. She doesn't burst into flames, the world doesn't end, the teacher doesn't even pull her aside after class. So she asks herself: Why am I trying so hard? What if I stop? With her signature wit and heaps of dark humor, Katie Heaney delivers a stunning YA novel the sprints full-force into the big questions our teen years beg--and adeptly unravels their web.

Discover a world of epic proportions with this new paperback boxed set, including all three books in the bestselling Reckoners series--Steelheart, Firefight, and Calamity--from the mind of #1 New York Times bestselling author Brandon Sanderon, author of the Mistborn Series, the Stormlight Archives, and the Skyward Series. From the international phenomenon Brandon Sanderson, #1 bestselling author of the Mistborn series and the Stormlight Archives, comes the New York Times bestselling Reckoners series. How far would you go for revenge if someone killed your father?If someone destroyed your city?If everything you ever loved was taken from you?David Charleston will go to any lengths to stop the Epics. But to exact revenge in this new world, David will need the Reckoners--a shadowy group of rebels bent on maintaining justice.And it turns out that the Reckoners might just need David too.

For fans of Lovecraft Country and Candyman comes a witchy story full of Black girl magic as one girl’s dark ability to summon the dead offers her a chance at a new life, while revealing to her an even darker future.Katrell can talk to the dead. And she wishes it made more money. She’s been able to support her unemployed mother―and Mom’s deadbeat-boyfriend-of-the-week―so far, but it isn’t enough. Money’s still tight, and to complicate things, Katrell has started to draw attention. Not from this world―from beyond. And it comes with a warning: STOP or there will be consequences. Katrell is willing to call the ghosts on their bluff; she has no choice. What do ghosts know of having sleep for dinner? But when her next summoning accidentally raises someone from the dead, Katrell realizes that a live body is worth a lot more than a dead apparition. And, warning or not, she has no intention of letting this lucrative new business go.Only magic isn’t free, and dark forces are coming to collect. N