A librarian is the key functionary of any library. He is the chief of library organization. A librarian is various known as chief librarian, Director of library are. A librarian is an information professional trained in library and information science, which is the organization and management of information services or materials for those with information needs. Typically, librarians work in a public or college library, an elementary or secondary school media center, a library within a business or company, or another information-provision agency. Some librarians are independent entrepreneurs workings information specialists, catalogers, indexers and other professional, specialized capacities. Librarians may be categorized as a public, school, correctional, special, independent or academic librarian. Traditionally, librarians have been associated with collections of books, as demonstrated by the etymology of the word "librarian" (< Latinliber, 'book'). However, modern librarians deal with information in many formats, including books, magazines, newspapers, audio recordings (both musical and spoken word),video recordings, maps, manuscripts, photographs and other graphic material, bibliographic databases, web searching, and digital resources. The aim of the book is to put researchers engaged in different areas of research on a common platform so as to be benefited by the current state of knowledge in the field of this subject. Content: Traditional Functions of Libraries; Library Professionals; Staffing and Organization for Collection Development ; Application of Technology in Libraries; Preparation of I information Materials.