Abstract: The MIT Encyclopedia of the Cognitive Sciences (MITECS) is the first encyclopedia in cognitive sciences-a web-navigable resource with invaluable information and several hundred links to related resources.The material provided therein is thorough and very clearly presented by the leading scientists in each area.This is one of the most comprehensive resources in cognitive science to date.It will serve as a teaching and research guide that users may frequently refer to for important definitions, background information, and citations to relevant literature.