Since its original publication in 1983, Evolution: The History of an Idea has been recognized as a comprehensive and authoritative source on the development and impact of this most controversial of scientific theories. This new edition has been entirely rewritten to take account of the latest work of historians and scientists. The sequence of chapters has been reconstructed in a way that will help students and general readers to understand the key phases in the development of modern evolutionism. The book's substantial bibliography has been updated to serve as a valuable introduction to the immense literature on this topic.