This manual is designed to help bibliographers, librarians, and other materials selectors plan and conduct systematic collection evaluations using both collection centered and client centered techniques. Topics covered in five chapters are: (1) planning the assessment; (2) collection-centered techniques, comprising the compilation of statistics, checking lists, catalogs, and bibliographies, direct observation, and the application of standards; (3) client-centered techniques, including availability and accessibility, user surveys, and periodical use study; (4) specialized assessments, consisting of weeding decisions and approval programs; and (5) reporting assessment results, which includes three examples. Advantages and disadvantages are discussed for each technique as well as step-by-step procedures for its application. Interspersed in the manual are various forms and surveys, e.g. those specific to English, chemistry, and Latin American collections. Appendices include a list of agencies accrediting academic programs at Brigham Young University, American Library Association standards for university libraries, statistical aids, and selected sources on collection assessments. Six references are provided. (RBF)