A handbook for researchers, practitioners, managers, teachers and students of library and information science as well as those in the area of science, scientific communication, sociology of science, scientometrics; covers user, use, information behaviour, communication behaviour, information transfer, scientific communication, knowledge dissemination and utilisation, information requirement, need and related studies; Brings together and presents in juxtaposition the widely dispersed works and their findings; Compares and consolidates work done in the area. Indicates gaps that exist and evaluates the results.