Synopsis Library is a service Institution meant for speedy and right information to a right reader at a right time. This is the sole objectives of the reference service in libraries. Libraries are known by its quality of reference/ information services rendered to its clientele. The book looks into the philosophy of reference service, its various practices, economics and marketing alongwith the specific type of reference services to the various groups of users like disabled, old people, children, women etc. The book has a mention of reference services to the business. A Chapter has been devoted to users behaviour and information seeking behaviour of them in libraries. This book reference services in libraries is a comprehensive book for the students and librarians to look into the theory and practice of reference services in the libraries.