This directory of 16mm film libraries has been compiled for the use of teachers, school administrators, librarians, community leaders, and others who use or wish to use motion pictures in their educational and informational programs. It is a revision and an expansion of the Office of Education publication, "A Directory of 897 16mm Film Libraries," which was prepared and issued 2 years ago. It is hoped that this annotated directory of film libraries, arranged by States and cities, will be helpful to all groups interested in obtaining and using 16mm films and, furthermore, that the information provided in this directory concerning the resources and services of more than 2,000 film libraries will be useful in the national defense programs. [Best copy available has been provided.]