A vibrant and evocative account of how the great scientific ideas of the ancient world were lost and found. After the fall of Rome, the libraries of the West were burned by marauding Goths and Huns, and the Greek and Roman classics survived only in the Islamic world. Violet Moller's wonderful The Map of Knowledge . . . tells the story of how that knowledge was first preserved, then returned to Europe through Arabic translations made in cities such as Baghdad, Palermo, Toledo and Cordoba. It is a beautifully written and researched work of intellectual archaeology.