The Encyclopedia of Science of Information is a compendium of systematic study of Information. All concepts related with Information are brought under one ambit. The concepts related to Information such as Information access, Information age, Information analysis, Information architecture , Information audit, Information behavior ,Information broker, Information commons, Information consolidation, Information desk, Information ecology ,,Information economy, Information ethics, Information explosion, Information industry, Information law, Information literacy, Information management, Information mapping, Information marketing, Information need, Information networks ,Information overload, Information policy, Information pollution, Information poverty, Information professional ,Information retrieval , Information Science, Information search, Information security, Information services, Information sharing, Information society, Information sources, Information storage media, Information super highway Information systems, Information technology, Information theory, Information use studies, Informatics and Informetrics are delineated. This reference book is intended for students, researchers, teachers in Library and Information Science and practicing librarians and information managers and scientific community in general.