Cited in Guide to Reference Books . One of few bibliographies to review children's audiovisual products, the 21st edition of ESLC provides annotated listings of 10,000 highly recommended books, video cassettes, CD-ROMs, computer software programs, and sound recordings. Titles are recommended by phase of Phase 1, essential for all libraries regardless of size; Phase 2, for continuing development of larger collections; and Phase 3, of special interest or regional importance. Adult and professional listings contain adult titles recommended for parenting collections and materials that emphasize innovative and recent educational trends. Annotation c. by Book News, Inc., Portland, Or.