Indexes virtually all doctoral dissertations and many masters theses produced in the U.S. since 1861. Dissertations from other countries date back to 1637. Abstracts available from 1980. Full-text for dissertations are being added continually. Most since 1997 are full-text, though some authors choose not to make their work available. Print and microfilm copies are offered for a fee, but request the item via Interlibrary Loan before paying for a copy.

New search functionality includes metadata from Clarivate's Citation Connection. To ensure your search results take advantage of this new functionality, please add “AND ref(1)“ to your search terms.