The encyclopedia may be browsed by an author or a topic index, and the entire work is searchable by keyword. Orbis Orbis, the Yale University Library's online public access catalog, contains almost 3 million records for titles the Library has acquired since 1977 or circulated since 1981. Orbis provides circulation information for all items as well as holdings information for most journal titles. For help using Orbis, see either the Orbis Searching Guide or the Online Orbis Tutorial . For materials published before 1977 use the SML Card Catalog which contains cards for all Yale libraries.
Every article is indexed.
The scope is international, including journals in English, French, German, Italian, Spanish and other Western languages. Access to the Periodicals Contents Index requires a networked computer with a Yale IP address. The PsycINFO database covers the professional and academic literature in psychology and related disciplines including medicine, psychiatry, nursing, sociology, education, pharmacology, physiology, linguistics, and other areas. PsycINFO's coverage is worldwide, and includes references and abstracts to over 1300 journals in more than 20 languages, and to book chapters and books in the English language. Over 50,000 references are added annually.