ProQuest Dissertations and Theses — Full Text is the world’s most comprehensive collection of dissertations and theses. The official digital dissertations archive for the Library of Congress and the database of record for graduate research. PQDT — Full Text includes nearly 3 million searchable citations to dissertation and theses from around the world from 1743 to the present day together with over 1 million full-text dissertations that are available for download in PDF format.
More than 80,000 new full-text dissertations and theses are added to the database each year through dissertations publishing partnerships with 700 leading academic institutions worldwide and collaborative retrospective digitization of dissertations. Full-text dissertations are archived as submitted by the degree-granting institution. Some will be PDF, some PDF image.