Use the I-Share catalog to find books not available at the University of Illinois (either because another patron has already charged this book, or because the book isn't part of the collection here). I-Share is a single catalog through which you can search and request books from the collections of 85+ academic and research libraries in Illinois. You request books from a participating I-Share library the same way you request books from University of Illinois libraries—simply click the "Request Item" tab, log in to your account (the same account you use to manage books you have borrowed from the University of Illinois Library), and complete the request. Books requested from I-Share libraries usually arrive withing three to four days, and you will receive an email when your book is ready to be picked up. You can borrow I-Share books for 4 weeks, and renew each book up to 3 times (for a maximum circulating period of 16 weeks).