The function of libraries is to make it easy for the people in their community to obtain information from other people or environments that may be distant is space, time or imagination. To perform this function libraries require communication media. Storage media are essential, but duplication and transmission media can improve the service of libraries. Libraries differ from other communication institutions in that they serve as agents for the receivers of information rather than for producers or distributors. Technological changes happening concurrently with social changes make libraries the logical institution to develop and manage the 'education delivery systems' that the society requires. Expansion of duplication media in libraries and library-client transmission media should be given higher priority than library-library transmission media. Cable television is likely to provide an excellent medium for library networks. Six key issues in network analysis are: Who is to be connected? Is it primarily a means of transportation, duplication or transmission? What information will be available? Will the network be shared or dedicated? What distribution of power does the network require? Should it be centralized or decentralized? (Other papers from this conference are available as LI 003360 - 003377 and LI 003379 through LI 003390) (Author/NH)