Guidelines are given for automating a library. Issues arising in automation are illustrated through the experience of the Doherty Library of the University of St. Thomas, Houston (Texas). The first step is to decide what type of system is right for the needs of the library and its patrons. In considering vendors of systems, it is important to consider the reputation and experience of the vendor and whether its system has been successful for others. In addition to developing criteria for vendors, it is necessary to develop criteria for the technical and user interface functions. This is best done by developing a set of questions specific to the library. In addition, the library should prepare a series of "show me" exercises, demonstrations of work flow, for each vendor, and all staff members should participate in these vendor demonstrations. Balancing cost, space, and security concerns are challenges that must be met. Implementing the system in stages greatly facilitates the project, and a plan should be developed that indicates when various steps in the automation process should be completed. Some of the difficulties faced by the Doherty Library in computer use and barcode application are discussed. Open communication with other libraries with automation experience will be extremely useful in the automation process. (Contains 8 references.) (SLD)