To All the Boys I've Loved Before is the first book in Jenny Han's popular series of the same name. The book tells the story of Lara Jean, an introverted teenager who writes secret love letters to all the boys she has ever had crushes on. One day, all of these letters are sent to their intended recipients, and Lara Jean's life is turned upside down. The book is filled with romance, humour and drama, and it has captured hearts all over the world. It has also been adapted into a successful Netflix film series.