The Archimedes Palimpsest is the name given to a Byzantine prayer book that was written over a number of earlier manuscripts, including one that contained two unique works by Archimedes, unquestionably the greatest mathematician of antiquity. Sold at auction in 1998, it has since been the subject of a privately funded project to conserve, image, and transcribe its texts. In Volume 1 the scientists, conservators, classicists, and historians involved in the project discuss in full their techniques and their discoveries. These include new speeches by the classical Athenian orator Hyperides, a lost commentary on Aristotle's Categories from the second or third century AD, and substantial re-readings and reinterpretations of the works by Archimedes. Volume 2 contains a complete set of colour images and transcriptions of the most important manuscripts that constitute the Palimpsest. The volumes will be of interest to manuscript scholars, conservators, classicists, and historians of science.