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.

Belly measures her life in summers. Everything good, everything magical happens between the months of June and August. Winters are simply a time to count the weeks until the next summer, a place away from the beach house, away from Susannah, and most importantly, away from Jeremiah and Conrad. They are the boys that Belly has known since her very first summer—they have been her brother figures, her crushes, and everything in between. But one summer, one wonderful and terrible summer, the more everything changes, the more it all ends up just the way it should have been all along.

Meet Rochelle “Elle” Evans: Pretty, popular - and never been kissed. Meet Noah Flynn: Badass, volatile - and a total player. When Elle decides to run a kissing booth at her school's Spring Carnival, she locks lips with Noah and her life is turned upside down. Her head says to keep away, but her heart wants to draw closer. This romance seems far from a fairy tale. Is Elle headed for heartbreak or will she get her happily ever after?

Postcard-perfect Jar Island is home to charming tourist shops, pristine beaches, amazing oceanfront homes - and three girls secretly plotting revenge. KAT is sick and tired of being bullied by her former best friend. LILLIA has always looked out for her little sister, so when she discovers that one of her guy friends has been secretly hooking up with her, she’s going to put a stop to it. MARY is perpetually haunted by a traumatic event from years past, and the boy who’s responsible has yet to get what’s coming to him. None of the girls can act on their revenge fantasies alone without being suspected. But together…anything is possible .

Carmen got the jeans at a thrift shop. They didn't look all that great; they were worn, dirty, and speckled with bleach. On the night before she and her friends part for the summer, Carmen decides to toss them. But Tibby says they're great. She'd love to have them. Lena and Bridget also think they're fabulous. Lena decides they should all try them on. Whoever they fit best will get them. Nobody knows why, but the pants fit everyone perfectly.