Perfect Mexican daughters do not go away to college. And they do not move out of their parents' house after high school graduation. Perfect Mexican daughters never abandon their family. But Julia is not your perfect Mexican daughter. That was Olga's role. Then a tragic accident on the busiest street in Chicago leaves Olga dead and Julia left behind to reassemble the shattered pieces of her family. And no one seems to acknowledge that Julia is broken, too. Instead, her mother seems to channel her grief into pointing out every possible way Julia has failed.

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.

Sixteen-year-old and not-so-openly gay Simon Spier prefers to save his drama for the school musical. But when an email falls into the wrong hands, his secret is at risk of being thrust into the spotlight. Now Simon is actually being blackmailed: If he doesn't play wingman for class clown Martin, his sexual identity will become everyone's business. Worse, the privacy of Blue, the pen name of the boy he's been emailing with, will be compromised.

Being the middle child has its ups and downs. But for Grace, an only child who was adopted at birth, discovering that she is a middle child is a different ride altogether. After putting her own baby up for adoption, she goes looking for her biological family, including: Maya, her loudmouthed younger bio sister, who has a lot to say about their newfound family ties. And Joaquin, their stoic older bio brother, who has no interest in bonding over their shared biological mother.

Sixteen-year-old Lara Jean Song keeps her love letters in a hatbox her mother gave her. They aren’t love letters that anyone else wrote for her; these are ones she’s written. One for every boy she’s ever loved - five in all. When she writes, she pours out her heart and soul and says all the things she would never say in real life, because her letters are for her eyes only. Until the day her secret letters are mailed, and suddenly, Lara Jean’s love life goes from imaginary to out of control.

Nora Hamilton knows the formula for love better than anyone. As a romance channel screenwriter, it’s her job. But when her too-good-to work husband leaves her and their two kids, Nora turns her marriage’s collapse into cash and writes the best script of her life. No one is more surprised than her when it’s picked up for the big screen and set to film on location at her 100-year-old-home. When former Sexiest Man Alive, Leo Vance, is cast as her ne’er do well husband Nora’s life will never be the same.

James and Alex have barely anything in common anymore - least of all their experiences in high school, where James is a popular senior and Alex is suddenly an outcast. But at home, there is Henry, the precocious 10-year-old across the street, who eagerly befriends them both. And when Alex takes up running, there is James’s friend Nathen, who unites the brothers in moving and unexpected ways.

Sammie McCoy is a girl with a plan: graduate at the top of her class and get out of her small town as soon as possible. Nothing will stand in her way - not even the rare genetic disorder the doctors say will slowly steal her memories and then her health. So the memory book is born: a journal written to Sammie's future self, so she can remember everything, from where she stashed her study guides to just how great it feels to have a best friend again.

Last week I cut my hair, bought some boys' clothes and shoes, wrapped a large ACE bandage around my chest to flatten my fortunately-not-large breasts, and began looking for a new name. Angela Katz-McNair has never felt quite right as a girl. Her whole life is leading up to the day she decides to become Grady, a guy. While coming out as transgendered feels right to Grady, he isn't prepared for the reaction he gets from everyone else.

Everyone knows Alice slept with two guys at one party. When Healy High star quarterback Brandon Fitzsimmons dies in a car crash, it was because he was sexting with Alice. Ask anybody. Rumor has it Alice Franklin is a slut. It's written all over the "slut stall" in the girls' bathroom: "Alice had sex in exchange for math test answers" and "Alice got an abortion last semester." After Brandon dies, the rumors start to spiral out of control.

Everything about Jessie is wrong. At least that's what it feels like during her first week of junior year at her new ultra-intimidating prep school in Los Angeles. Just when she's thinking about hightailing it back to Chicago, she gets an email from a person calling themselves Somebody/Nobody (SN for short), offering to help her navigate the wilds of Wood Valley High School. Is it an elaborate hoax? Or can she rely on SN for some much-needed help?

Everyone thinks they know Libby Strout, the girl once dubbed "America's Fattest Teen". But no one's taken the time to look past her weight to get to know who she really is. Following her mom's death, she's been picking up the pieces in the privacy of her home, dealing with her heartbroken father and her own grief. Now Libby's ready: for high school, for new friends, for love, and for every possibility life has to offer.

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.

Making friends has never been Elise Dembowski’s strong suit. All throughout her life, she’s been the butt of every joke and the outsider in every conversation. When a final attempt at popularity fails, Elise nearly gives up. Then she stumbles upon a warehouse party where she meets Vicky, a girl in a band who accepts her; Char, a cute, yet mysterious disc jockey; Pippa, a carefree spirit from England; and most importantly, a love for DJing.

For much of her life, Sally Holt has been mystified by the things her older sister, Kathy, seems to have been born knowing. Kathy has answers for all of Sally’s questions about life, about love, and about Billy Barnes, a rising senior and local basketball star who mans the concession stand at the town pool. The girls have been fascinated by Billy ever since he jumped off the roof in elementary school, but Billy has never shown much interest in them until the summer before Sally begins eighth grade.