Presents an analysis of checklist-based research designed to investigate whether particular books, periodicals, and films considered to be controversial by the investigators are owned in certain groups of libraries. Objectives of checklist studies, definitions of self-censorship, compilation of checklists, and interpretation of data are…

Study of 68 school media centers in 11 states was conducted to field-test collection mapping as a technique and to amass enough data to enable individual schools to compare their collections with national pool of school collections. Collections of participating schools were also compared to nationally recognized selection lists. (CDD)