The Cambridge History of Science is to be published in eight substantial volumes, beginning with Ancient Mesopotamia and classical Greece and Rome, through the Medieval period, early modern Europe, and on through modern science. The history begins chronologically and that approach continues on up to Vol. 4, after which the volumes split off into modern histories of different branches of science. They are designed to be read as both a narrative and an interpretation, and also used as a work of reference. The first comprehensive history of science in 30 years, they will be an excellent reference for historians and professionals in the history of science. The contributors, world leaders in their respective specialties, engage with current historiographical and methodological controversies and strike out on positions of their own.