. . With this first sentence, readers are immediately thrust into a fast-paced thriller that doesn't let up for a moment. In a world not too far removed from our own, kids are being taken away to special workhouses if their families exceed the monthly debt limit imposed by the government. Thirteen-year-old Matt briefly wonders if he might be next, but quickly dismisses the thought. After all, his parents are financially responsible, unlike the parents of those other kids. As long as his parents remain within their limit, the government will be satisfied and leave them alone. But all it takes is one fatal visit to the store to push Matt’s family over their limit—and to change his reality forever. Kristen Landon's The Limit brings the popular dystopian thriller genre to a middle grade audience.

    . . and counting. But it's finally time for readers to hear directly from Rowley in a journal of his own. In Diary of an Awesome Friendly Kid, Rowley writes about his experiences and agrees to play the role of biographer for Greg along the way. (After all, one day Greg will be rich and famous, and everyone will want to know his life's story.) But Rowley is a poor choice for the job, and his "biography" of Greg is a hilarious mess. Diary of an Awesome Friendly Kid: Rowley Jefferson's Journal offers readers a new way to look at the Wimpy world--one fans won't want to miss!

    Finn Whitman and four other teens have been hired as Disney World guides, but with an odd twist: With cutting-edge technology, they have been transformed into hologram projections capable of leading guests around the park. What begins as an exciting theme park job turns into a virtual nightmare as Finn and his pals attempt to thwart an uprising by a menacing group of Disney villains.

    Speak outside the approved lexicon and face banishment. The exceptions are the Wordsmith and his apprentice Letta, the keepers and archivists of all language in their post-apocalyptic, neo-medieval world. On the death of her master, Letta is suddenly promoted to Wordsmith, charged with collecting and saving words. But when she uncovers a sinister plan to suppress language and rob Ark’s citizens of their power of speech, she realizes that it’s up to her to save not only words, but culture itself.

    When he arrives at her Intergalactic Bed & Breakfast, he isn't surprised by its 60s meets Star Wars decor, but he is surprised by the weird-looking guests. It turns out that each room in the inn is a portal, and his grandma is the gate-keeper, allowing aliens to vacation on Earth. Grandma desperately needs Scrub's help with welcoming (and disguising) the tourists, shopping for cartloads of aluminum foil for dinner, and taking rambunctious alien kids camping in the nearby woods. The problem is, the town sheriff--already suspicious about Granny--is a scout leader camping in the same spot. Will Scrub blow Granny's cover, forcing the B&B to shut down forever? Full of cosmic chaos and mind-bending mayhem, Scrub's summer adventure will leave readers wanting to make a return trip.

    This book introduces you to R, RStudio, and the tidyverse, a collection of R packages designed to work together to make data science fast, fluent, and fun. Suitable for readers with no previous programming experience, R for Data Science is designed to get you doing data science as quickly as possible. Authors Hadley Wickham and Garrett Grolemund guide you through the steps of importing, wrangling, exploring, and modeling your data and communicating the results. You’ll get a complete, big-picture understanding of the data science cycle, along with basic tools you need to manage the details. Each section of the book is paired with exercises to help you practice what you’ve learned along the way. You’ll learn how to: Wrangle—transform your datasets into a form convenient for analysis Program—learn powerful R tools for solving data problems with greater clarity and ease Explore—examine your data, generate hypotheses, and quickly test them Model—provide a low-dimensional summary that captures true "signals" in your dataset Communicate—learn R Markdown for integrating prose, code, and results

    There are many stories that tell of his life, but the delightful version relayed in The Life and Adventures of Santa Claus is by far the most charming and original of all. Only L. Frank Baum, the man who created the wonderful land of Oz, could have told Santa's tale in such rich and imaginative detail.

    Conor spends his days studying the science of flight with his tutor and exploring the castle with the king’s daughter, Princess Isabella. But the boy’s idyllic life changes forever the day he discovers a deadly conspiracy against the king. When Conor tries to intervene, he is branded a traitor and thrown into jail on the prison island of Little Saltee. There, he has to fight for his life, as he and the other prisoners are forced to mine for diamonds in inhumane conditions.There is only one way to escape Little Saltee, and that is to fly. So Conor passes the solitary months by scratching drawings of flying machines on the prison walls. The months turn into years; but eventually the day comes when Conor must find the courage to trust his revolutionary designs and take to the air.

    His plan is to infiltrate the science fair at Hubble Middle School, located in a Maryland suburb just outside Washington. The rich kids at Hubble cheat by buying their projects every year, and Grdankl's cronies should have no problem selling them his government-corrupting software. But this year, Toby Harbinger, a regular kid with Discount Warehouse shoes, is determined to win the $5,000 prize-even if he has to go up against terrorists to do it. With the help of his best friends, Tamara and Micah, Toby takes on Assistant Principal Paul Parmit, aka "The Armpit," a laser-eyed stuffed owl, and two eBay buyers named Darth and the Wookiee who seem to think that the Harrison-Ford-signed BlasTech DL-44 blaster Toby sold them is a counterfeit. What transpires is a hilarious adventure filled with mystery, suspense, and levitating frogs.

    even the most advanced cyber criminals. And that’s where the Trackers come in. Four tech-savvy kids armed with high-tech video cameras and esoteric coding skills, the Trackers can find almost anyone, anywhere. Told through a collage of videos, text, and websites, Trackers #1 follows Adam, Finn, Lewis, and Emily as they become entangled in a high-tech, high-stakes game of cat and mouse with Shantorian, the world’s most dangerous hacker. At least, that’s who they think they’re tracking....

    Owen knows that better than anyone, what with the real world’s homework and chores.But everything changes the day Owen sees the impossible happen—his classmate Bethany climb out of a book in the library. It turns out Bethany’s half-fictional and has been searching every book she can find for her missing father, a fictional character.Bethany can’t let anyone else learn her secret, so Owen makes her a deal: All she has to do is take him into a book in Owen’s favorite Kiel Gnomenfoot series, and he’ll never say a word. Besides, visiting the book might help Bethany find her father……Or it might just destroy the Kiel Gnomenfoot series, reveal Bethany’s secret to the entire world, and force Owen to live out Kiel Gnomenfoot’s final (very final) adventure.

    All magical children's classics.When their new nanny, Mary Poppins, arrives on a gust of the East Wind, greets their mother, and slides up the banister, Jane and Michael's lives are turned magically upside down. Familiar to anyone who has seen the film or the West End adaptation, you can now read all six of these wonderfully original tales about Jane and Michael's adventures with the magical Mary Poppins. Mary takes the children on the most extraordinary outings: to a fun fair inside a pavement picture; to visit Uncle Andrew who floats up to the ceiling when he laughs; on a spectacular trip to see the Man-in-the-Moon! With her strict but fair, no-nonsense attitude, combined with amazing magical powers, things are never straightforward with Mary Poppins! But she has only promised to stay until the wind changes!

    Authors Drew Conway and John Myles White help you understand machine learning and statistics tools through a series of hands-on case studies, instead of a traditional math-heavy presentation.Each chapter focuses on a specific problem in machine learning, such as classification, prediction, optimization, and recommendation. Using the R programming language, you'll learn how to analyze sample datasets and write simple machine learning algorithms. "Machine Learning for Hackers" is ideal for programmers from any background, including business, government, and academic research.Develop a naive Bayesian classifier to determine if an email is spam, based only on its textUse linear regression to predict the number of page views for the top 1,000 websitesLearn optimization techniques by attempting to break a simple letter cipherCompare and contrast U.S. Senators statistically, based on their voting recordsBuild a "whom to follow" recommendation system from Twitter data

    That’s why moving to the small town of Gatesweed becomes a dream come true when Eddie discovers that Olmstead lived there before mysteriously disappearing thirteen years ago. Even better, Eddie finds a handwritten, never-before-seen Nathaniel Olmstead book printed in code and befriends Harris, who’s as much an Olmsteady as he is. But then the frightening creatures of Olmstead’s books begin to show up in real life, and Eddie’s dream turns into a nightmare. Eddie, Harris, and their new friend, Maggie, must break Olmstead’s code, banish all gremlins and monster lake-dogs from the town of Gatesweed, and solve the mystery of the missing author, all before Eddie’s mom finisheswriting her own tale of terror and brings to life the scariest creature of all.

    Through the allegory of Alice's adventures and encounters, Gilmore makes the essential features of the quantum world clear and accessible. It is a thrilling introduction to some essential, often difficult-to-grasp concepts about the world we inhabit.