CREDO is a database of over 1200 reference books, such as encyclopedias, and subject-specific resource books. Newer editions are added as available. Search by title or subject, or search across and within the full text of all the e-books in the collection. In addition to e-books, CREDO provides Topic Pages, where all information relevant to a topic, issue, problem, controversy, or key person, place, or event, are collected. CREDO also provides links to other sources of information about the topic from other library resources or from the web.