Theses, dating from the first submitted in 1868, are included in the MIT Libraries online catalog, Barton. The divisional libraries have circulating copies of recent theses and microfiche copies of all graduate theses since 1972. In addition, the Barker Library has microfiche copies of most graduate theses since 1945.
Many theses, including all theses submitted to the Libraries since 2004, are available electronically in DSpace at MIT.