Special collections Libraries 608 Electronic information resources 101 Academic libraries 58 Methodology 58 Collection development 54 Digital libraries 53 more ... Government publications 53 Nonbook materials 51 Bibliography 45 Rare books 31 Library resources 30 Audio-visual library service 29 Administration 28 Microforms 26 Collectors and collecting 25 Data processing 22 History 22 Management 22 Depository libraries 21 Electronic journals 21 Conservation and restoration 20 Libraries and electronic publishing 20 School libraries 20 Government information 18 Audio-visual materials 16 Collection development (Libraries) 16 Instructional materials centers 16 Books and reading 15 Children's libraries 15 less ...