Barrett Bloom is hoping college will be a fresh start after a messy high school experience. But when school begins on September 21, everything goes wrong. She’s humiliated by the know-it-all in her physics class, she botches her interview for the college paper, and at a party that night, she accidentally sets a frat on fire. The next morning, Barrett’s perplexed to find herself back in her dorm room bed, no longer smelling of ashes and crushed dreams. It’s September 21. Again.

Theodore Finch is fascinated by death, and he constantly thinks of ways he might die. But each time, something good, no matter how small, stops him. Violet Markey lives for the future, counting the days until graduation, when she can escape her Indiana town and her aching grief in the wake of her sister's recent death. When Finch and Violet meet on the ledge of the bell tower at school, it's unclear who saves whom.

Dylan Woods hasn’t seen her best friend, Langston, in years. After he moved to Los Angeles, he ghosted her. Then he became Legendary, the biggest teen R&B artist on the planet. For the most part, Dylan has moved on, with her sights set on Juilliard. But when her parents announce that Langston is coming for a short stay with them, the entire family is thrilled. Except for Dylan. The idea of sharing a house with music’s biggest bad boy makes her stomach churn.

Three years ago Tanner Scott's family relocated from California to Utah, a move that nudged the bisexual teen temporarily back into the closet. Now, with one semester of high school to go and no obstacles between him and out-of-state college freedom, Tanner plans to coast through his remaining classes and clear out of Utah. But when his best friend, Autumn, dares him to take Provo High's prestigious Seminar - where honor roll students diligently toil to draft a book in a semester - Tanner can't resist going against his better judgment and having a go.

Allie Navarro can't wait to show her best friends the app she built at CodeGirls summer camp. CLICK'D pairs users based on common interests and sends them on a fun (and occasionally rule-breaking) scavenger hunt to find each other. And it's a hit. By the second day of school, everyone is talking about CLICK'D. Watching her app go viral is amazing. But when Allie discovers a glitch that threatens to expose everyone's secrets, she has to figure out how to make things right.

Andie has a plan. And she always sticks to her plan. Future? A top-tier medical school. Dad? Avoid him as much as possible (which isn't that hard considering he's a congressman and he's never around). Friends? Palmer, Bri, and Toby - pretty much the most awesome people on the planet. Who needs anyone else? Relationships? No one's worth more than three weeks. So it's no surprise that Andie's got her summer all planned out, too.

Sixteen-year-old physics nerd Aysel is obsessed with plotting her own death. With a mother who can barely look at her without wincing, classmates who whisper behind her back, and a father whose violent crime rocked her small town, Aysel is ready to turn her potential energy into nothingness.

It started with a bus crash. Daisy was a little girl when it happened, and she barely remembers the accident or being brought back to life. At that moment, though, she became one of the first subjects in a covert government program that tests a drug called Revive. Now fifteen, Daisy has died and been Revived five times. Each death means a new name, a new city, and a new identity. The only constant in Daisy’s life is change. Then she meets Matt and Audrey, charismatic siblings who quickly become her first real friends....

Anna and Bennett were never supposed to meet: she lives in 1995 Chicago and he lives in 2012 San Francisco. But Bennett has the unique ability to travel through time and space, which brings him into Anna's life, and with him a new world of adventure and possibility. As their relationship deepens, the two face the reality that time may knock Bennett back to where he belongs, even as a devastating crisis throws everything they believe into question.

Lucy lives on the 24th floor. Owen lives in the basement. It's fitting, then, that they meet in the middle - stuck between two floors of a New York City apartment building, on an elevator rendered useless by a citywide blackout. After they're rescued, Lucy and Owen spend the night wandering the darkened streets and marveling at the rare appearance of stars above Manhattan. But once the power is back, so is reality. Lucy soon moves abroad with her parents, while Owen heads out west with his father.

Greta loves her job as assistant librarian. She loves her best friend, Will, the high school civics teacher and debate coach. She even loves her mother despite her obvious disappointment that Greta is still single. Then she meets Mac in the poetry section of the library, and she is smitten. Mac is heart-stoppingly gorgeous and showers her with affection - poetic text messages, and free hot chocolate at the local café where he works. The only problem is that he seems to be a different person in his texts than in his face-to-face conversation.

Torrey Grey is famous. At least, on the internet. Thousands of people watch her popular videos on fashion and beauty. But when Torrey's sister is killed in an accident - maybe because of Torrey and her videos - Torrey's perfect world implodes. Now, strangers online are bashing Torrey. And at her new school, she doesn't know who to trust. Is queen bee Blair only being sweet because of Torrey's internet infamy? What about Raylene, who is decidedly unpopular, but seems to accept Torrey for who she is?

Lacey Barnes has dreamed of being an actress for as long as she can remember. So when she gets the opportunity to star in a movie alongside one of Hollywood’s hottest actors, she doesn’t hesitate to accept the part. But Lacey quickly learns that life in the spotlight isn’t as picture-perfect as she imagined. She’s having trouble bonding with her costars, her father has hired the definition of a choir boy, Donavan Lake, to tutor her, and somewhere along the way, she’s lost her acting mojo.

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.

In the wake of her best friend Ingrid's suicide, Caitlin is left alone, struggling to find hope and answers. When she finds the journal Ingrid left behind for her, she begins a journey of understanding and broadening her horizons that leads her to new friendships and first love. Nina LaCour brings the changing seasons of Caitlin's first year without Ingrid to life with emotion, honesty, and captivating writing.

Allie Navarro can't wait to show her best friends the app she built at CodeGirls summer camp. CLICK'D pairs users based on common interests and sends them on a fun (and occasionally rule-breaking) scavenger hunt to find each other. And it's a hit. By the second day of school, everyone is talking about CLICK'D. Watching her app go viral is amazing. But when Allie discovers a glitch that threatens to expose everyone's secrets, she has to figure out how to make things right.

Sixteen-year-old physics nerd Aysel is obsessed with plotting her own death. With a mother who can barely look at her without wincing, classmates who whisper behind her back, and a father whose violent crime rocked her small town, Aysel is ready to turn her potential energy into nothingness.

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.

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.

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.

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).

Last spring, Nikki Beckett vanished, sucked into an underworld known as the Everneath. Now she’s returned - to her old life, her family, her boyfriend - before she’s banished back to the underworld... this time forever. She has six months before the Everneath comes to claim her, six months for good-byes she can’t find the words for, six months to find redemption, if it exists. Nikki longs to spend these precious months forgetting the Everneath and trying to reconnect with her boyfriend, Jack, the person most devastated by her disappearance - and the one person she loves more than anything.

With an agoraphobic mother and a barely-there father, Sang abhors the isolation keeping her in the shadows. The only thing Sang craves is a fresh start and to be accepted as ordinary by her peers, because for her being different meant being cast out alone. When her family moves to a new school district, Sang infiltrates a group of boys nearly perfect in every way.

Best friends Dave and Julia were determined never to be cliché high school kids. They even wrote their own Never List of everything they vowed they'd never, ever do in high school. Some of the rules have been easy to follow, like number five, never dye your hair a color of the rainbow, or number seven, never hook up with a teacher. But Dave has a secret: he's broken rule number eight, never pine silently after someone for the entirety of high school. It's either that or break rule number ten, never date your best friend.

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.

Daniel is the backup punter for the Erie Hills Elephants, which really means he's the water boy. He spends most of his time hoping no one notices his strange habits - he calls them Zaps: avoiding writing the number four, for example. His life gets weirder when another girl at school, unkindly nicknamed Psycho Sara, notices him for the first time. She seems to peer through him. Then Daniel gets a note: "I need your help", it says, signed, Fellow Star Child - whatever that means. Suddenly, Daniel, a total no one at school, is swept up in a mystery that might change everything for him.

To say eighteen-year-old Farrah Higgins—or Digit—is good at math is a laughable understatement. She’s been cracking codes since childhood, and is finally at home with “her people” at MIT in Cambridge. Her talents are so off the charts that her laptop is under surveillance by both the CIA and an ecoterrorist named Jonas Furnis. So when she thoughtlessly hacks into the Department of Defense’s database, she lands in serious hot water inside and outside the law.

When 16-year-old Alice is diagnosed with leukemia, her prognosis is grim. To maximize the time she does have, she vows to spend her final months righting wrongs - however she sees fit. She convinces her friend Harvey, who she knows has always had feelings for her, to help her with a crazy bucket list that's as much about revenge (humiliating her ex-boyfriend and getting back at her archnemesis) as it is about hope (doing something unexpectedly kind for a stranger).

Twenty-eight-year-old Brooklyn Campbell is having a bad day. A speeding ticket, a towed car, and a broken heel are all working against her laid-back vibe. To top it all off, her birth mother, whom she's never met, has requested contact. The only bright spot is an impromptu date with a beautiful and mysterious brunette. Jessica Lennox is what you would call a high-powered executive. She's the head of a multimillion-dollar advertising firm in New York City, and it didn't happen by accident.

Clara Gardner has recently learned that she's part angel. Having angel blood run through her veins not only makes her smarter, stronger, and faster than humans (a word, she realizes, that no longer applies to her), but it means she has a purpose, something she was put on this earth to do. Figuring out what that is, though, isn't easy.