Virtually all accredited institutions in North America that award doctoral degrees submit their dissertations to ProQuest for publication or listing in DAI. The listings provide:

Bibliographic citations that include title, author name, degree- granting university, year awarded, number of pages, and ProQuest order number. Since 1988, most DAI entries have also included the name of the dissertation adviser, committee chair, etc.
350-word abstracts, written by the authors, for titles published from 1980 forward.

Monthly issues of DAI include approximately 5,000 new entries from North America, grouped by subject and printed in two separate sections:  Section A, Humanities and Social Sciences
Section B, Sciences and Engineering.

Occasionally a department or student may not submit a dissertation to ProQuest, so DAI is not 100% inclusive. However, we estimate that 95% to 98% of all U. S.doctoral dissertations are included. DAI is the most current of the printed sources for the ProQuest Dissertations & Theses database. Published monthly and cumulated annually, it is available both in softcover and on microfiche.