In addition to print books, the WVU Libraries provide access to electronic books. Here are some of the collections.
Use E-ZBorrow to get books quickly from a group of Pennsylvania libraries called PALCI. The loan period is four weeks as is the renewal. You may request text books. Since subject searching is too slow, do title searches only.
Use interlibrary loan (the software is called Illiad) to get books and articles from other libraries. Click on First Time Users to set up an account. Remember your password. It's one you have created.