Owen Gingerich one of the world's leading authorities on Galileo and Copernicus, shares his 30-year obsession with the fact that shortly before his death in 1543, Nicolaus Copernicus published *De revolutionibu*. A groundbreaking scientific work, it revealed that we live in a sun - rather than earth - centered universe. Curious about the contention that the book went largely unread at the time, Gingerich undertook a trek around the world to hunt down the 600-odd extant first and second printings. The result is *The Book Nobody Read: Chasing the Revolutions of Copernicus* - part travelogue, part science detective story, party biography of a book and its illustrious author.