Remarks on the relative permanence and durability of three types of film in use in library microform reproduction (silver, diazo, and vesicular) and points out some technical and economic facts that govern the choice of microform materials for libraries. A 6-item reference list is included. (Author/JL)

This guide to the planning and design of school library or learning resources centers (LRC) is divided into two parts. Guidelines provided in the first section cover the planning responsibilities of the district LRC director and the learning resources specialist/librarian; development of educational specifications; location; required spaces;…