Why Can't I Download My Textbook?
Ebook publishers will often restrict the type of ebook they will sell to libraries. Even if they have a version of an ebook that they will sell directly to students, they may include restrictions on the copy they sell to libraries - such as limiting how much of the book can be downloaded or requiring use of their platform. Sometimes they won't sell ebooks to libraries at all.
If a publisher won't sell an ebook to us, we have the option of creating our own ebook. However, copyright restrictions mean we aren't able to share a downloaded copy of the book.
Why Can't I Check Out a Copy for the Whole Term?
The library has limited funds for purchasing course materials. We make the best use of those funds by purchasing single copies for multiple people to share.