John is a 2005 book by Cynthia Lennon about the life of her first husband, musician John Lennon, as well as her own life. First published by Hodder & Stoughton, the book chronicles her relationship with Lennon prior to, during, and after his period as a member of the Beatles, including the birth of their son Julian Lennon, her and John's divorce, John's subsequent remarriage to Yoko Ono, and Cynthia and Julian's life following John's 1980 murder. John was Cynthia's second book, following her 1978 memoir A Twist of Lennon.