The number of electronic books (e-books) that are available is increasing rapidly. Libraries are acquiring them individually, in large groups, and as part of collections. Off-campus librarians perceive them to be the best solution to the problems and expenses related to loaning and shipping print books to off-campus students. This study looks at the usage of e-books by off-campus students at Central Michigan University (CMU) to see if usage patterns can assist librarians with e-book collection development to support off-campus programs.