To All the Boys I've Loved Before is a 2014 young adult romance novel by American author Jenny Han, first published by Simon & Schuster and released on April 15, 2014. Han was inspired to write the book based on her own habit of writing long letters to boys she had crushes on as a teenager. The novel was followed by two sequels, P.S. I Still Love You, released on May 26, 2015, and Always and Forever, Lara Jean, released on May 2, 2017.