"My Friend Leonard" is a memoir by James Frey, detailing his experiences after the events of his previous book, A Million Little Pieces. The narrative focuses on his friendship with Leonard, a charismatic and complex character he meets while in a rehabilitation center. The book explores themes of addiction, recovery, and the bonds formed in difficult circumstances. Through his relationship with Leonard, Frey reflects on the challenges of overcoming personal demons and the importance of support from friends during the healing process.