This book, first published in 1995, addresses the key issue facing libraries on how to survive in an age of interdependence. Increasingly, individual libraries must act as if each is part of a 'world library' Instead of being self-sufficient, each library, from the small public library to the large research library, must find ways to put materials from this 'world library' into the hands of its patrons and must stand ready to supply materials from its own collection to others, both quickly and cost-effectively through interlibrary loan. It explores the critical questions for making resource-sharing work, with particular emphasis on interlibrary loan. Cooperative collection development, economic decision models, consortial arrangements, copyright dilemmas, and the possibilities of technology are explored and a national project to revamp interlibrary loan and document delivery is described and future directions posited. Authors present historical perspective, explore the future, and report from multiple perspectives.