If you are considering using ebooks as required reading for a course, you should ensure that the library has an unlimited user license for the book to make sure students don't have trouble accessing it while their classmates are using it.
Find licensed Ebooks through McKillop Library. This library catalog search provides results only for e-books.
Proquest's Ebook Central allows you to search limit your search to only books with unlimited user licenses.
To select this option, try your search and on the results page, select "Unlimited print, copy, and download." See below.
Ebsco's Ebook Academic Collection includes books from across disciplines. You can identify whether a book you are interested in using has an unlimited user license by clicking on the book's title and looking at the "Concurrent User Level." To assign it to a class, it should state "unlimited" in this field. Please see below.