The present publication in CICIL series which has attempted to enlist in one single sequence the national information resources in communication, lnformation and Librarianship, of 33 important Delhi libraries, is intended to serve three purposes among others. Firstly, it will help the practising Librarians and working lnformation Scientists to update their knowledge and skill, to broaden their horizons and to meet the challenges of the changing times. Secondly, it is a handy tool for the Teaching Faculty why will find it(with listing of rare and out-of-print editions)of immense value in their teaching work, Thirdly, -this publication is particularly valuable for Researchers and Scholars who will not only find in it Iisting of most of their required material in their area of study, but will also b+ able to locate the place where the material is available. Additionally, to Acquisition Librarian it will help indicate the gaps and to Reference Librarian a pointer for referral service