A major theme of this volume is the issue of library accountability and evaluation of productivity. Four review papers deal directly with the topic. The first reviews the literature relating to evaluation of libraries generally with an emphasis on school libraries. The second focuses on the measurement of productivity in the academic library. It includes an illustrative example of the use of various indexes and measures. The third paper reviews the literature on "relevance" in information science and describes various theoretical perspectives on relevance defined as effectiveness. Another paper assesses the interdisciplinary literature on the impact of reading on behavior--an ultimate measure of library effectiveness. A review of trends in European library education and a discussion of the rise of middle managers in libraries complete the volume. Extensive bibliographies follow each article. (KB)