Reference and information services are considered an important activity of a modern library. This comprehensive and student-friendly book discusses in detail different types of information and reference sources and services, such as encyclopaedias, directories, yearbooks, dictionaries, geographical sources, biographical sources, statistical sources and handbooks. The book is organised into four parts. Part I deals with various types of information sources such as documentary and non-documentary sources. Part II discusses different types of reference services, organisation of reference section and the role of the librarian in the digital age. Part III describes the wide range of information service such as Current Awareness Service (CAS) and Selective Dissemination of Information (SDI). Part IV provides an overview of important information systems such as National Information System for Science and Technology (NISSAT) and International System for Agricultural Science and Technology (AGRIS). The book is intended for the undergraduate and postgraduate students of library science. Besides, it will also be very useful for librarians, information scientists, and information professionals. Salient Features Deals with both theoretical and practical aspects of information sources and services. Discusses various types of information sources and services keeping in view the latest trends and developments in the field. Presents the concepts related to information sources and services in a systematic and accessible way.

The book covers objective-type questions with the answer given at the end of each chapter. The present book will be helpful for the candidates, as well as for those who want to get jobs as a librarian in Central, State schools, Navodaya Vidyalaya, Staff Selection Commission, etc. The book has been divided into 10 chapters in such a way that all of the 10 units prescribed in the syllabus are covered. Different questions in objective mode have been properly classified in the normal sub-divisions. Utmost care has been taken in providing correct solutions for the questions. However, any suggestions and submissions for further improvement are welcome from the experts in the field. I hope that the book will act not only as a question bank on the subject but also be a good tool for appearing in the interviews. In the end, the authors are very much grateful to our respected wife Mrs. T. Pandeeswari, (Computer Teacher, T.P.N.M. School, in Virudhunagar) for giving inspiration and guidance, when the authors started the work of writing books.