Sources of free and inexpensive display materials for library and classroom bulletin boards are listed alphabetically under 169 subject areas. Subject areas include various geographic areas, occupations, diseases, health, biology, food, social studies, the arts, industries and technology. Over 1,000 items are listed from 185 sources, and include such visual aids as posters, charts, maps, study prints, and pictures. Each listing gives a description of the material available including its size, the name and address of the source, and information on price if the item is not free. (Author/BK)