If the University of Illinois Library does not own a book you need, or if the item you want is already checked out, the I-Share catalog will usually be the fastest way to have your item sent to you. The I-Share catalog includes library catalog information from more than 100 libraries in Illinois, and allows you to request items from these libraries for delivery here. Items unavailable in I-Share may be requested though Interlibrary loan. Wordcat provides a way to search the collections of libraries worldwide.