John T. Butler has served as the Associate University Librarian for Data and Technology at the University of Minnesota since 2008. Prior to that role, he was the inaugural Director of the University of Minnesota's Digital Library Development Lab, and also led the Science and Engineering Library at the University of Minnesota. In the interview, Butler discusses one of his earliest experiences working in libraries as a student for Minitex and other experiences leading up to his current role at the University of Minnesota libraries. Other topics discussed include: the development of the Minnesota Digital Library and the Minnesota Legacy Amendment funding; early mentors and influential colleagues Hank Rowan (Professor of Art, University of Minnesota), Susan Ardi (Engineering Librarian, University of Texas at Austin), Bill DeJohn, and Wendy Lougee; and his engagement with the Digital Public Library of America and HathiTrust. This interview also includes an audio recording, transcript, and photograph of the interviewee.