The first day of middle school means trading in freeze tag at the pool for new schedules, fabulous outfits, and a fresh start. But for 11-year-old Kaylan, the chaos of new locker combinations, cafeteria cliques, and potential first kisses is more than she can handle. She dreads the start of sixth grade and feels like she wants - no, needs - a winning game plan. Luckily, Kaylan and her effortlessly chill BFF, Arianna, have a fool-proof plan for tackling transitions: a list of 11 things they need to do to totally transform themselves before they both turn 12 in November.

Justin has two goals for sophomore year: to date Chuck, the hottest boy in school, and to become the king of Cool U, the table in the cafeteria where the "in" crowd sits. Unfortunately, he has the wrong look (short, plump, Brillo-pad curls), he has the wrong interests (Broadway, chorus violin), and he has the wrong friends (Spencer, into Eastern religions, and Mary Ann, who doesn't shave her armpits). And Chuck? Well, he's not gay; he's dating Becky, a girl in chorus with whom Justin is friendly.

Leila has made it most of the way through Armstead Academy without having a crush on anyone, which is a relief. As an Iranian American, she’s different enough; if word got out that Leila liked girls, life would be twice as hard. But when beautiful new girl Saskia shows up, Leila starts to take risks she never thought she would.

As 14-year-old Christy leaves her family's Wisconsin farm to spend the summer at her wealthy aunt and uncle's home in Newport Beach, she hopes this will be the best summer of her life. When she meets surfer Todd with his screaming silver blue eyes, she's certain it will be. But when the summer doesn't unfold as Christy had hoped, she wonders if she'll keep her promise to her parents not to do anything she'll regret. Will she do anything to get Todd's attention, to be accepted, to force her summer to give her everything it promised?

Maddie doesn't believe in luck. She's all about hard work and planning ahead. But one night she buys a lottery ticket on a whim, and, to her astonishment, she wins! In a flash Maddie's life is unrecognizable. No more stressing about college scholarships - nope, now she's suddenly talking about renting a yacht and basking in the spotlight at school! But then rumors start flying, and random people begin asking her for loans. Suddenly Maddie finds that she isn't sure whom she can trust.

What's it like to be undocumented? High school senior M.T. knows all too well. With graduation and an uncertain future looming, she must figure out how to grow up in the only country she's ever called home... a country in which she's "illegal". M.T. was born in Argentina and brought to America as a baby without any official papers. And as questions of college, work, and the future arise, M.T. will have to decide what exactly she wants for herself, knowing someone she loves will unavoidably pay the price for it.

Seventeen-year-old Abby Turner's summer isn't going the way she'd planned. She has a not-so-secret but definitely unrequited crush on her best friend, Cooper. She hasn't been able to manage her mother's growing issues with anxiety. And now she's been rejected from an art show because her work "has no heart". So when she gets another opportunity to show her paintings, Abby isn't going to take any chances. Which is where the list comes in. Abby gives herself one month to do 10 things, ranging from face a fear (three) to learn a stranger's story (five) to fall in love (eight).

It's been a year since it happened - when Paige Hancock's first boyfriend died in an accident. After shutting out the world for two years, Paige is finally ready for a second chance at high school...and she has a plan. First: Get her old crush, Ryan Chase, to date her - the perfect way to convince everyone she's back to normal. Next: Join a club. But when Ryan's sweet, nerdy cousin, Max, moves to town and recruits Paige for the Quiz Bowl team, her perfect plan is thrown for a serious loop.

Enrique “Quique” Luna has one goal this summer—get over his crush on Saleem Kanazi by pursuing his other romantic prospects. Never mind that he’s only out to his best friend, Fabiola. Never mind that he has absolutely zero game. And definitely forget the fact that good and kind and, not to mention, beautiful Saleem is leaving LA for the summer to meet a girl his parents are trying to set him up with. Luckily, Quique’s prospects are each intriguing in their own ways.

For 13 years, Ben Tomlin was an only child. But all that changes when his mother brings home Zan - an eight-day-old chimpanzee. Ben’s father, a renowned behavioral scientist, has uprooted the family to pursue his latest research project: a high-profile experiment to determine whether chimpanzees can acquire advanced language skills. Ben’s parents tell him to treat Zan like a little brother. Ben reluctantly agrees. At least now he’s not the only one his father’s going to scrutinize,

Mishna Wolff grew up in a poor black neighborhood with her single father, a white man who truly believed he was black. "He strutted around with a short perm, a Cosby-esque sweater, gold chains and a Kangol---telling jokes like Redd Fox, and giving advice like Jesse Jackson. You couldn't tell my father he was white. Believe me, I tried," writes Wolff. And so from early childhood on, her father began his crusade to make his white daughter down.

Sam Walsh had been missing for three years. His older sister, Beth, thought he was dead. His childhood friend Josh thought it was all his fault. They were the last two people to see him alive. Until now. Because Sam has been found, and he's coming home. Beth desperately wants to understand what happened to her brother, but her family refuses to talk about it - even though Sam is clearly still affected by the abuse he faced at the hands of his captor.

The last time Lex was happy, it was before. When she had a family that was whole. A boyfriend she loved. Friends who didn't look at her like she might break down at any moment. Now she's just the girl whose brother killed himself. And it feels like that's all she'll ever be. As Lex starts to put her life back together, she tries to block out what happened the night Tyler died. But there's a secret she hasn't told anyone--a text Tyler sent that could have changed everything.

Liam "Mr. Popular" Carter will always be the closest thing to the "walking plague" in my eyes. His cockiness seeps through his every move, and no matter how many state championships he wins with the basketball team, he will forever be a "loss" to me. Because he's my older brother's best friend, I'm forced to tolerate him, and he's forced to tolerate me. In fact, unless my brother is around, we happily ignore each other every chance we get. It wasn't always this way, though....

Sam Jones and Zoe Miller have one thing in common: they both want an escape from reality. Loner Sam flies under the radar at school and walks on eggshells at home to manage her mom’s obsessive-compulsive disorder, wondering how she can ever leave to pursue her dream of studying aerospace engineering. Popular, people-pleasing Zoe puts up walls so no one can see her true self: the girl who was abandoned as an infant, whose adoptive mother has cancer, and whose disabled brother is being sent away to live in a facility.