This study is an examination of the various uses of and attitudes toward public, school and academic libraries by children and young adults. The information on which the analysis is based was derived from 300 questionnaires completed by patrons of libraries in five cities. The questionnaire used and the raw data received are included in the appendices. Major categories measured by the questionnaire are: (1) user age group in relation to library size, (2) frequency of library visits by age groups and city size, (3) purposes of visits by age groups and library size, (4) various reasons for library use by library size, (5) user satisfaction, (6) student-users' age level and frequency of visit and (7) student-users' satisfaction with library staffs (school and public) and collections. (Other studies in this series are available as ED 044 131 through 044 145). (SG)