CogPrints Cognitive Sciences ebooks Archive - Includes a wide variety of ebook papers in psychology, neuroscience, linguistics, philosophy, biology, medicine, anthropology and computer science. Ebooks date back as far as 1950, although most of it dates since 1990. Some areas of the archive require registration, to obtain a username and password. Ebooks here are defined as the digital texts of peer-reviewed research articles, before and after refereeing. Before refereeing and publication, the draft is called a "preprint" ebook. The refereed, published final ebook is called a "postprint." Ebooks may include both preprints and postprints, as well as any significant ebook drafts in between, and any post publication updates.