Allan J. [Lan] Dyson was appointed University Librarian at UC Santa Cruz's University Library in August 1979, and retired in July 2003. This oral history, conducted as part of the Regional History Project's University History Series, is a singular contribution to the documentation of twenty-four years of history, not only of UCSC's University Library, but also of a period of extensive technological and cultural transformations in academic librarianship in the United States.