Over the years, Greg Heffley has chronicled his mishaps and misadventures in a series of diaries—make that journals—but book 20 of the Diary of a Wimpy Kid series, Partypooper, really takes the cake! Expect gobs of fun and over-the-top antics as Greg throws an epic birthday party for none other than himself. So come celebrate and laugh alongside Greg, his family, and the entire world of Wimpy Kid fans.

When ten-year-old Lina Gao steps off the plane in Los Angeles, it’s her first time in America and the first time seeing her parents and her little sister in five years! She’s been waiting for this moment every day while she lived with her grandmother in Beijing, getting teased by kids at school who called her “left behind girl.” Finally, her parents are ready for her to join their fabulous life in America! Except, it’s not exactly like in the postcards.

Dexter Foreman is twelve going on eighty. He has lived at The Pines retirement village with his grandmother since he was six years old, and as a result he gets along better with senior citizens than kids his own age. He's homeschooled by the residents up until the day the county’s truancy officer shows up and announces that Dex has to go to a “real” school, to the local middle school. At school, Dex sticks out like a sore thumb. He dresses like a grandpa (and can be just as cranky). His taste in movies and music is decades out of date.

When Kristy Thomas has the great idea to form a baby-sitters club - a chance to earn money and spend time with her friends, all while doing something they each love to do - she has no idea how much the club will change everything. Crank calls, uncontrollable toddlers, wild pets, untruthful clients...running a business is hard work! Kristy and her co-founders, Mary Anne, Claudia, and Stacey, are sure they can handle anything. But only if they stick together....

Reef and Theo don't know what's happening to them. They'll be going about their days and then suddenly they'll have these strange flashes of memory—but the memories don't belong to them. And at the same time, their own memories are starting to... vanish. For Reef, this is a big problem, because memories are all he has left of his mom. For Theo, it's strange because the new memories give him a freedom he doesn't have with his domineering dad.

Ava Baldwin has always tried to keep her anger in check, just like her mom taught her. But when know-it-all classmate Owen King tries to speak over her yet again, Ava explodes . . . and Owen freezes, becoming totally unresponsive. Although Owen recovers, Ava's parents whisk her off to her mother’s alma mater, the Accademia del Forte, a mysterious international boarding school in Venice.

Dear Diary...Bess, George, and I are actually in Alaska! Everywhere you look, there are massive mountains and sparkling, deep-blue waters. We're on the maiden voyage of the Arctic Star luxury cruise ship, and my old friend, Becca Wright, the assistant cruise director, needs our help. She received threatening emails before even setting sail; then a bloody body turned up in the swimming pool.

Five years. That's how long Coyote and her dad, Rodeo, have lived on the road in an old school bus, criss-crossing the nation. It's also how long ago Coyote lost her mom and two sisters in a car crash. Coyote hasn't been home in all that time, but when she learns that the park in her old neighborhood is being demolished - the very same park where she, her mom, and her sisters buried a treasured memory box - she devises an elaborate plan to get her dad to drive 3,600 miles back to Washington state in four days...without him realizing it.

Sara Martinez is a hacker. She recently broke into the New York City foster care system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, Sara finds herself facing years in a juvenile detention facility and banned from using computers for the same stretch of time. Enter Mother, a British spy who not only gets Sara released from jail but also offers her a chance to make a home for herself within a secret MI5 agency. Operating out of a base in Scotland, the City Spies are five kids from various parts of the world.

It's the height of World War II. Michael O'Shaunessey, son of the Irish ambassador to Nazi Germany, lives with his family in Berlin. But Michael, like his parents, is a spy. He joins the Hitler Youth, taking part in their horrific games and book burning, despising everything they stand for but using his insider knowledge to bring important information back to his parents and the British Secret Service. When Michael is tasked to find out more about Projekt 1065, a secret Nazi mission, things get even more complicated.

Melody is not like most people. She cannot walk or talk, but she has a photographic memory; she can remember every detail of everything she has ever experienced. She is smarter than most of the adults who try to diagnose her and smarter than her classmates in her integrated classroom - the very same classmates who dismiss her as mentally challenged because she cannot tell them otherwise. But Melody refuses to be defined by cerebral palsy.

From Newbery Honor and Coretta Scott King Author Award winner Renée Watson comes the first book in a young middle grade series about Ryan Hart, a girl who is pure spirit, kindness and sunshine. Ryan Hart has a lot on her mind – school, self-image and especially family. Her dad finally has a new job, but money is tight. That means some changes, like selling their second car and moving into a new (old) house. But Ryan is a girl who knows how to make sunshine out of setbacks.

On a family trip to Paris, Greg Rich's parents disappear. They're not just missing from the city - they're missing from the century. So, Greg does what any other 14-year-old would do: He travels through time to rescue them. Greg soon finds out that his family history is tied to the legendary Three Musketeers. But when he meets them, they're his age, and they'll only live long enough to become true heroes if he can save them.

Two boys - one white, one Indian American - gain strength from each other from afar as they struggle to navigate middle school, family, and friendships.

They’re called parachutes: teenagers dropped off to live in private homes and study in the United States while their wealthy parents remain in Asia. Claire Wang never thought she’d be one of them, until her parents pluck her from her privileged life in Shanghai and enroll her at a high school in California. Suddenly she finds herself living in a stranger’s house, with no one to tell her what to do for the first time in her life. She soon embraces her newfound freedom, especially when the hottest and most eligible parachute, Jay, asks her out.