Audio-visual library service Libraries 10 Special collections 10 Nonbook materials 8 Audio-visual materials 3 Instructional materials centers 3 Collectors and collecting 2 Congresses 2 Academic libraries 1 Administration 1 Audio-visual education 1 Audiotapes 1 Book selection 1 Cataloging of audio-visual materials 1 Cataloging of nonbook materials 1 Information services 1 Information storage and retrieval systems 1 Information technology 1 Libraries and video recording 1 Library administration 1 Library information networks 1 Media programs (Education) 1 Microforms 1 School libraries 1 Selection of nonbook materials 1