We’ve all heard the statement, “Libraries need to cooperate more.” Recently, a librarian asked me, “Why? Why do we need to cooperate? How will my cooperation with a library in [another city in the county] help anything?” I’m afraid I had to say, “Well…um…I don’t know.” That conversation spurred an effort to look at Utah library inter- and extra-library cooperation. What’s worked? What hasn’t? Why? What are the elements of successful cooperation? Real-life stories from real-life Utah libraries.