Use CLICnet to search for books. There is a "quick" search box below to get you started. If you are looking for a specific book (or other known item), type the title in the box, ignoring initial articles. For a specific author, type the last name first. If St. Thomas doesn't own an item, but another CLIC library does, click on the "request item" check mark to request it. If you are unable to find an item in CLICnet, you might search the WorldCat database, and request items from it on interlibrary loan (ILLiad).
LibrarySearch provides a simple, one-stop search for books, articles, videos, recordings, and more. Items from St. Thomas and other regional libraries can be requested online and delivered to the St. Thomas library of your choice.
These Library of Congress call number ranges may be helpful if you wish to browse library shelves for materials.
Use WorldCat to search for books nation-wide, and use the ILLIAD interlibrary loan system to get them sent here.