Machine Learning Algorithms for Problem Solving in Computational Applications

The past and present unravel into staggering truths in this can’t-miss installment of the New York Times and USA TODAY bestselling Keeper of the Lost Cities series told entirely from Keefe’s point of view.Please be careful. Please be happy. And PLEASE forget all about me. It’ll be better for everyone that way.Those were the last words Keefe Sencen wrote to Sophie Foster before he ran away to the Forbidden Cities. He didn’t want to leave, but it was the only way to keep his friends safe while he figured out how to control his scary new powers and searched for answers about his past.What he found was so much more than adventures in Humanland.Where did he go? What did he do? And who did he meet while the rest of his friends worked to solve the mystery of Stellarlune? The answers go far beyond anything anyone could have ever imagined and give Keefe the power to change his destiny.

In this fifth installment in the New York Times bestselling series from Edgar Award winner James Ponti, the young group of spies take on New York City in another international adventure perfect for fans of Spy School and Mrs. Smith's Spy School for Girls. The City Spies head to the Big Apple when a credible threat is made to a young climate activist who is scheduled to speak in front of the upcoming United Nations General Assembly. With Rio acting as alpha and a new member in their ranks, the team's mission to protect a fellow teen takes them on an exciting adventure in, around, and even under the greatest city in the world as they follow leads to the outer boroughs, the UN Headquarters, and even the usually off-limits stacks that extend deep under the main branch of the New York Public Library.

For the first printing only! This hardcover features exclusive painted edges while the special edition supply lasts. In a world ruled by the tenets of Greek mythology, one girl's fate is more than it appears in the first book in a new dark academia fantasy middle grade series from #1 New York Times bestselling author of the Crave series Tracy Wolff. What's your myth? Penelope Weaver has spent her whole life preparing to attend Anaximander's Academy, where students learn how to bring to life the stories of Greek mythology as well as discover the Greek god whose principles they most embody. Penelope knows she's an Athena--all smart, practical, and rule-following girls who take part in stories that matter are Athenas. But when Penelope and her twin brother Paris arrive at Anaximander's, it appears fate has other plans. Penelope isn't placed with Athena but with students who are anything but practical and who prefer parties to rules. And that's just the beginning. She's given the world's w

A little rabbit discovers the delight in a dreary rainy day in this splashing sequel to the witty and whimsical picture book, I Wish it Would Snow.One sunny day, Rabbit and his pals are playing outsid

Bunheads meets The Kicks in this third novel in this entertaining middle grade series from New York Times bestselling author, dancer, model, and actress Maddie Ziegler!Harper and her fellow Dance Star

The Secret Life of Pets meets Amelia Bedelia in this witty and sweet debut picture book about an overly-literal pup trying his paw at several different jobs and the hilarious mishaps that ensue.When V

In a cheeky and hilarious picture book, author Sam Apple and illustrator Sam Ricks share a silly story about the potty-training experience…from the toilet’s point of view!It’s not easy being a potty,

Detective brothers Frank and Joe work to debunk a time travel machine in the eighth book in the interactive Hardy Boys Clue Book series.Bayport Elementary is almost ready for the annual science fair&#

Blackthorn Key meets The Da Vinci Code in this award-winning novel about a puzzle-solving genius who is forced to use his skills to face a danger that has been lurking in the background for years.Twel

命運之日來臨，Celia繼承家族長久流傳下來的預言之力。她的第一個預言竟是同學Jeffrey的死亡命運。每當她試圖拯救Jeffrey，預言卻再次指向另一場死亡。她該如何一邊度過水深火熱的中學生活，一邊扭轉宿命的安排？A young seer’s first prophetic vision upends her life and sets her off on a desperate quest to change fate in this contemporary fantasy middle grade novel.Most people inherit eye colors or heirlooms, but for Celia Cleary, the gift of prophecy has been passed down in her family for generations. And on the 4,444th day of her life, Celia will have her first vision. But nothing could have prepared her for what she sees―the quiet boy down the street, Jeffrey Johnson, is about to die.Determined to save him despite her grandmother’s warnings against it, Celia alters events to stop her vision from playing out. But for each prophecy she avoids, another one takes its place, putting Jeffrey in constant danger. Fate has made its choice, and it’s not giving up the hunt.Focusing on homework or friends isn’t easy when you’re going head-to-head with death, and keeping Jeffrey Johnson alive is th

Better Nate than Ever meets Love Sugar Magic in this spooky second novel in the Fearless middle grade series from Hamilton and Broadway star Mandy Gonzalez about a group of young thespians who time travel back to 1950s Broadway.Twelve-year-old Relly can't wait for his beloved grandfather to finally see him on stage! Along with the rest of the Fearless Squad, Relly has just opened Our Time, a brand-new musical at the infamous Ethel Merman Theater. Though his grandfather would prefer his grandson pursue something more ';practical,' Relly just knows when he sees the show, he will change his mind and come around on Relly's love of theater and dance. But right before their night show, a member of the Squad loses their phone down an open manhole. When the entire Squad goes down to help retrieve it, they find themselves in 1950s Manhattan. A big problem, considering the curtain goes up in about two hoursand over sixty years in the future! With a series of clues, Relly discovers that his grand

Fort's continued adventures take more surprising twists and turns in this third novel in a thrilling series from the author of the New York Times bestselling Story Thieves!Dealing with monster attacks and his missing father has been hard enough for Fort Fitzgerald in his first month at the Oppenheimer School. But there's another school for magic, this one in the United Kingdom, that's about to create even bigger problems.Six of the Carmarthen Academy students found themselves lost in time when they first started learning magic. Now they've returned, with news of a coming war that the students claim only they can stop.But their new plan for the world might lead to an even worse future, one that Fort and his friends are destined to help bring about, no matter how much they might want to fight it.Can Fort change the future that the Time students have already seen play out? Or is he destined to pay for his past mistakes for all of time?

From the authors of Cake and Norman the Slug comes another wacky, laugh-out-loud picture book about a very special dance we have all had to do at some point in our lives!Alan the Bear has a problem. A

Wintertime at the orchard has Peter learning some important lessons about speaking up in this second novel of a sweet series about the bonds of friendship.Blanketed in snow, the orchard looks like a m

Perfect for fans of Stuart Gibbs and James Ponti, this hilarious and poignant middle grade sci-fi adventure set in 1980s Ohio follows a young girl who makes incredible discoveries about family and belonging while chasing a kidnapping robot.It’s the summer of 1983, and one by one, the kids of Far Flung Falls are disappearing.With sheer drop-offs at every turn, the woods behind Molly McQuirter’s house have always been a dangerous place―even before something big and metal started lurking in them. But when Molly’s little brother is snatched up before her eyes, she has no choice but to follow. Sure, Wally tends to ruin everything, and his finger practically lives up his nose, but she isn’t about to let him be abducted by some unknown enemy, especially since their mom ran off to Florida two years ago and their dad, who’s slowly morphing into a couch potato, won’t be any help. If Molly wants to protect the family she has left, Wally’s rescue is going to be up to her. So aided a crew of unusua

From New York Times bestselling author Hannah Shaw―also known as Kitten Lady―comes the first book in an exciting and heartwarming new chapter book series following kittens and other baby animals in Fosterland!When a tiny piglet named Emmett bounces off the truck carrying his mother and siblings, he’s lost, hungry, and stuck on the side of the road. He has no idea where he’s supposed to go, or where he belongs.Then a giant scoops Emmett up and takes him to a wonderful, magical place called Fosterland, where he meets a kitten named Jez. Emmett has a lot of questions, and once he hears all about life as a kitten, he decides it’s much better than being a piglet. So, Emmett decides to just become a kitten instead! Problem solved.But as both Jez and Emmett grow older and realize they might be headed off to different forever homes, Emmett will have to confront his fears and face the scariest question of all: Is there a Foreverland out there for him?

From acclaimed author of Maybe He Just Likes You and Halfway Normal comes a powerful and moving story of learning how to grow, change, and survive.When twelve-year-old Zinnia Manning's older brother G

Kiki and her friends get caught up in a code war to try and meet a narwhal in this sparkling Mermaid Tales adventure.All the merkids are super-excited! Two famous narwhal scientists are visiting Tride

For the first printing only! This paper over board features sprayed stenciled edges (depicting doodles by Rubie!) while the special edition supply lasts. Fans of Dork Diaries will love this hilarious new diary-style series featuring color-lined pages with black and white illustrations. In this first book, Rubie has to face sleepaway camp without her BFF! Hello, summer! Eleven-year-old Rubie Fox can't wait to go to sleepaway camp for the very first time. She and her best friend Riley Swisher will go away for an entire month TOGETHER, and they'll even be able to spy on Riley's crush Owen, who will be across from Camp Pineview, over at the boys' camp, Moose-Ridge.. But when Riley drops a bomb--she can't go to camp because she broke her ankle--Rubie has to go by herself. Which sort of makes her feel RAGE...how can she go to camp without Riley?! But her mom has already paid for it, so she's stuck with her plushie chicken Jim the Duck and a cabin full of girls she doesn't know. But Rubie jus

In this sixth installment in the New York Times bestselling series from Edgar Award winner James Ponti, the young group of spies stage a rescue in Rome in another international adventure perfect for fans of Spy School and Charlie Thorne. Cairo, the newest member of the City Spies, takes the lead when his sister disappears in Istanbul. Determined to save the family of one of their own, the team risks discovery as their search leads them to Rome. Meanwhile, there's been intel that seems to threaten the royal wedding about to take place in Westminster, bringing the team back to the UK on an official case for MI6. With so much security all over the city, it's harder than ever for the City Spies to go unnoticed. Will their skills be up to the task?

Perfect for fans of Dork Diaries and Emmie & Friends, this first book in a diary-style illustrated middle grade series follows an anxious, science-minded sixth grader determined to become fun and win back her friend. Sixth grade has been pretty disaster-free for aspiring astronaut Maple McNutt--which is impressive, given the number of worries and possible catastrophes that run through her head every day. (So far, Earth hasn't been devoured by a black hole and a cockroach hasn't crawled out of her toothpaste mid-squeeze. Phew!) But then her best friend of seven-point-two years, Sunny Gwon, accuses her of being unfun and starts hanging around with a new group of friends. In order to win Sunny back, Maple decides to undergo a serious scientific transformation to become fun by 1. Doing extensive research, 2. Applying research to self, and and 3. Repeating until fun. It's risky and groundbreaking research, but Maple has no choice if she wants to save her friendship.

The second book in a new trilogy of twisted fairy tales from New York Times bestselling author James Riley, set in the world of his popular Half Upon a Time series, that’s perfect for fans of Fablehaven and Chris Colfer’s A Tale of Magic series!Lena might finally be accepted by the other giants after helping to defeat the Golden King and his faceless army in the Cursed City, but that doesn’t mean life has become any easier for her. The power-hungry Golden King wants revenge and has begun spreading shadow magic out over the kingdoms, taking over the minds of anyone it touches, and instilling fear and hatred as it goes.The fairy queens, the most magical beings in the kingdoms, say their sacred book, Tales of All Things, claims that there is one person who can defeat the Golden King and his dark spells: Lena. But only if she first proves herself worthy by completing three challenges.All Lena ever wanted was to prove she is really a giant. Now she has to be so much more. Can she and her ge

A young boy must unravel a curse to save his family's beloved Maine motel in this spooky middle grade novel sure to delight fans of Whispering Pines and The Peculiar Incident on Shady Street!Twelve-year-old Parker has grown up in his family's Home Away Inn, nestled on a wooded peninsula in Maine called Spruce Point. His best friend, Frankie, has been staying at the inn every summer for years with her family. Together, they've had epic adventures based out of a nearby old treehouse that serves as their official headquarters for Kids Confidential Meetings. But lately, business at the inn hasn't been great, and Parker is pretty sure he knows why. It's long been rumored that Mrs. Gruvlig, one of the few year-rounders on Spruce Point, has unique abilities of the supernatural kind. And Frankie is absolutely sure she saw a ghost on Mrs. Gruvlig's property! As more and more spooky happenings occur around the Point, Parker and Frankie are convinced Spruce Point has been officially cursed.

A young girl grapples with her grief over a tragic loss with the help of a new perspective from Hebrew school and supportive new friends in this heartfelt middle grade novel about learning to look forward.Twelve-year-old Daisy and Ruby are totally inseparable. They've grown up together, and Daisy has always counted on having Ruby there to pave the way, encourage her to try new things, and to see the magic in the world. Then Ruby is killed in a tragic accident while on vacation, and Daisy's life is shattered. Now Daisy finds herself having to face the big things in her lifelike starting middle school and becoming a big sisterwithout her best friend. It's hard when you feel sad all the time. But thanks to new friends, new insights, and supportive family members, Daisy is able to see what life after Ruby can look like. And as she reaches beyond that to help repair the world around her, she is reminded that friendship is eternal, and that magic can be found in the presence of anyone who ch

Christopher finally uncovers the Raven’s identity in this sixth novel of the award-winning Blackthorn Key series.The stakes are higher than ever when the Raven sets Christopher up for a horrible crime, leading him to be locked away in London’s most notorious prison. This terrible act is the first in a series of games the Raven plans to play with Christopher…games that are as dangerous as they are challenging.Once free from prison, Christopher, Tom, and Sally engage in a cat and mouse game with the Raven that takes them all over London. Can Christopher outwit the Raven one final time and finally unmask him? And what price might he have to pay to achieve that? This is the thrilling conclusion to the Blackthorn Key series that fans have been waiting for!

Sapphire attends a summer camp for young foals in the sixth book of this sparkly chapter book series that follows the trials and triumphs of young foals attending Unicorn University―perfect for those who love magic, happiness, and My Little Pony!Sapphire is ready for a summer full of fun at Camp Explore, which is in the Great Forest of Sunshine Springs, far away from her ocean home. The famous Amelia Hoofheart, Sapphire’s role model, was a camper at Camp Explore long ago, and Sapphire dreams of following in her hoofprints. Sapphire will miss her home and friends, but Comet, Shamrock, and Twilight promised to send her postcards, and Sapphire is sure she’ll make new friends at camp.It seems like things are off to a good start when camp kicks off with some friendly pranks, but then Sapphire realizes the unicorns aren’t pranking her at all. They really think she’s Princess Nova, princess of the Five Kingdoms! But a princess wouldn’t be attending a summer camp in the middle of the forest…ri

Join little Persephone on a sweet adventure in this tenth Little Goddess Girls story―part of the Aladdin QUIX line!Persephone and Aphrodite are continuing the quest to try and find some missing jewels. They end up meeting a lost bunny in their travels, who is looking for the Castle of What-Ifs. The girls end up in a magical, delicious land, where they meet a unicorn made of chocolate, with a very special crown―one that might be the key to finding one of the missing jewels!

Perfect for fans of Storm Runner and the Aru Shah series, this thrilling middle grade fantasy follows a young girl who must venture to the undersea kingdom of the Dragon King in Korea to save her parents from an evil diviner spirit.Twelve-year old Lia Park just wants to fit in. Her parents work with a mysterious organization that makes them ridiculously overprotective. Lia’s every move has been scrutinized since she was born, and she’d love to have the option of doing something exciting for once. So when she gets invited to the biggest birthday party of the year―and her parents say she can’t go―Lia sneaks out.But her first act of rebellion not only breaks her parents’ rules, but also an ancient protection spell, allowing an evil diviner spirit to kidnap and ransom her parents for a powerful jewel that her family has guarded for years. With just the clothes on her back and some very rusty magical skills, Lia finds herself chasing mysterious clues that take her to her grandmother’s home

Mack Rhino searches for the school’s missing lost and found in this fourth mystery of this silly, fun-to-read Aladdin QUIX chapter book series that’s perfect for emerging readers!It’s Career Day at Coral Cove Elementary School! Mack and his assistant Redd Oxpeck have been invited to participate and Mack is extra excited to be this year’s honorary speaker. But soon after Mack and Redd arrive, they discover that the school’s Lost-and-Found is…lost! Luckily Mack and Redd are on the job.

Princess Mini and her friends at Royal Fairy Academy take care of sick unicorns in this super-sweet story in the QUIX chapter book line that’s perfect for emerging readers.Oh, no! The unicorns of Candy Kingdom are sick. Princess Mini and her friends are worried the hot, red horns mean their poor unicorns are in danger. What is making them ill? And can everyone work together to find a sweet cure?

Storybook characters collide in this first book in a new trilogy of twisted fairy tales from New York Times bestselling author James Riley, set in the world of his popular Half Upon a Time seriesperfect for fans of Fablehaven and Chris Colfer's A Tale of Magic series!Five and a half feet might seem pretty tall for a twelve-year-old, but it's not when your parents are giants. Lena has kept the fact that she's a tiny giant secret, using magic to grow when out in the giant village. But hiding who she is has always felt wrong, even though she knows the other giants might not accept her. Fortunately, Lena has friends down in the Cursed City who understand that looking different doesn't make her less of a giant. Someone who knows not to judge by appearances is Jin, a young genie currently serving one thousand and thirty-eight years of genie training that requires him to fulfill the wish of whoever holds his magical ring. In Jin's case, it's the power-hungry Golden King. At least the king on

In this third installment in the New York Times bestselling series from Edgar Award winner James Ponti, the young group of spies help a fellow agent in another international adventure perfect for fans of Spy School and Mrs. Smith’s Spy School for Girls.After taking down a mole within their organization, the City Spies are ready for their next mission—once again using their unique skills and ability to infiltrate places adults can’t. The sinister Umbra has their sights set on recruiting a North Korean nuclear physicist by any means necessary, and the City Spies plan to keep an eye on his son by sending Paris to the chess prodigy’s tournaments in Moscow and Beijing.Meanwhile, Sydney’s embedded as a junior reporter for a teen lifestyle site as she follows the daughter of a British billionaire on tour with the biggest act on her father’s music label to uncover what links both the band and the billionaire have to a recent threat from an old Soviet missile base.From a daring break-in at one

From the acclaimed author of My Life in the Fish Tank and Maybe He Just Likes You comes a middle grade novel about a young girl struggling to balance following her dreams with dealing with her unreliable mother. Twelve-year-old Wren loves makeup--special effect makeup, to be exact. When she is experimenting with new looks, Wren can create a different version of herself. A girl who isn't in a sort-of-best friendship with someone who seems like she hates her. A girl whose parents aren't divorced and doesn't have to learn to like her new stepmom. So, when Wren and her mom move to a new town for a fresh start, she is cautiously optimistic. And things seem to fall into place when Wren meets potential friends and gets selected as the makeup artist for her school's upcoming production of Wicked. Only, Wren's mom isn't doing so well. She's taking a lot of naps, starts snapping at Wren for no reason, and always seems to be sick. And what's worse, Wren keeps getting hints that things aren't goin

Snarky, reluctant caped crusader Pizazz is back in this third book in the hilarious and highly illustrated seriesperfect for fans of Dog Man and Diary of a Wimpy Kid.The world's most reluctant (and em

From the author of Junior Monster Scouts comes new spooky and silly series perfect for fans of Goosebumps and Scary Stories to Tell in the Dark. In this first book, things get hairy for two fifth grad

In this second installment in the spooky and silly series that’s perfect for fans of Goosebumps and Scary Stories to Tell in the Dark, a girl’s dinner comes back to haunt her!Wolver Hollow is not a no

City Spies meets Indiana Jones in this second book of the Lola Benko, Treasure Hunter series that follows Lola and her friends as they compete for a spot in top treasure-hunting society.After saving h

A unique principal named Mr. Bundy runs PS 88 and acts incredibly strange in this silly, fun-to-read Aladdin QUIX chapter book that’s perfect for emerging readers!Acclaimed author Stephanie Calmenson

Wonder Woman meets Hidden Figures in this action-packed adventure trilogy about a trio of young superheroes fighting for justice during World War II!In the midst of World War II, Josie, Akiko, and Mae

In the thrilling finale to bestselling author Abi Elphinstone's The Unmapped Chronicles, a young orphan rises up to stop the evil harpy Morg once and for all.Eleven-year-old Zebedee Bolt is on the run