In this marvelously original book, Dan Hofstadter shows how a great treasure of forgotten personal writing—diaries, memoirs, and letters written by George Sand, Anatole France, and Marcel Proust, among others—bears on the erotic lives of the writers, and how the fine French tradition of conducting love affairs developed as an art form. As his subtle analysis makes clear, the love letters exchanged in a series of highly charged liaisons also suggested the themes of celebrated future novels.