PsycInfo is a database containing citations and abstracts of psychological literature from the 1880s to present. It includes journal articles, books, book chapters, and dissertations. Users can limit searches to specific types of publications like peer-reviewed journal articles or full text. PsycInfo features a controlled vocabulary thesaurus to identify related terms. Boolean and truncation searches can be used to broaden or narrow results. While some full texts are available, others must be requested or ordered.