For rare-book collectors, an original copy of the Gutenberg Bible—of which there are fewer than fifty in existence—represents the ultimate prize. Here, Margaret Leslie Davis recounts five centuries in the life of one copy, from its creation by Johannes Gutenberg, through the hands of monks, an earl, the Worcestershire sauce king, and a nuclear physicist, to its ultimate resting place, in a steel vault in Tokyo. Estelle Doheny, the first woman collector to add the book to her library and its last private owner, tipped the Bible onto a trajectory that forever changed our understanding of the first mechanically printed book. The Lost Gutenberg draws readers into this riveting saga, immersing them in the lust for beauty, prestige, and knowledge that this rarest of books sparked in its owners.