EB. Printing broadcasting electronic publishing HD. Rare books and manuscripts D. Libraries as physical collections A. Theoretical and general aspects of libraries and information but in this section B. Information use and sociology of information DD. Academic libraries E. Publishing and legal issues HE. Print materials IA. Cataloging bibliographic control AA. Library and information science as a field AZ. None of these EC. Book selling H. Information sources KE. Architecture channels supports BI. User interfaces BZ. None of these C. Users CB. User studies CD. User training DB. National libraries DC. Public libraries DF. Government libraries DI. Science libraries DJ. Technical libraries EA. Mass media EF. Censorship F. Management GA. Information industry HC. Archival materials HI. Electronic Media HL. Databases and database Networking HP. e-resources HZ. None of these I. Information treatment for information services IJ. Reference work JG. Digitization KB. Library activities archive and museum buildings education literacy and reading promotion usability