This self-instructional learning packet is one part of a competency-guided program for instructional supervisor preparation developed by the Special Education Supervisor Training (SEST) project. Training supervisors to formulate a coherent policy and procedure governing the evaluation and selection of learning materials is the goal of this learning packet. The focus of this packet is on selecting school library materials, including a variety of instructional media in addition to books and printed matter. A materials selection policy must include methods of assessing costs versus potential usage, of estimating the durability and timeliness of material, of material review, and of dealing with controversial materials. An effective selection procedure must provide for the utilization of selection aids (such as those listed in this packet's annotated bibliography), for the handling of donations, for selection periods, and for a committee to implement selection policy. As in the other training packets in this series, this one requires the user to develop his own program, providing him with a self-evaluation checklist and posttest to measure his progress. (DS)