The principal function of any library is to make available to the users, the information they need. In order to fulfill this function, the information which is stored in the library must be retrieved from the library database. Information retrieval (IR) is the activity of obtaining information resources relevant to an information need from a collection of information resources. Information retrieval is the process of selecting information from the stored information. The process is becoming increasingly dependent on computers and telecommunications technology. The design of information retrieval systems has presently become an important area of applied information technology. An information retrieval system is designed to analyze, process and store sources of information and retrieve those that match a particular user’s requirements. Modern information retrieval systems can either retrieve bibliographic items or the exact text that matches a user’s search criteria from a stored database of documents. IRS originally meant text retrieval systems as they were dealing with textual documents. Modern information retrieval systems deal not only with textual information but also with multimedia information comprising text, audio, images and video. Thus, modern information retrieval systems deal with storage, organization and access to text, as well as multimedia information resources.The book examines the users of these information methods and their information behavior. The conclusion emphasizes the need for a continuous evaluation of the information retrieval methods to make for effective and efficient information retrieval system.

Navjot Gokhale is a library management expert, renowned for his expertise in information retrieval and preservation. Gokhale's educational background includes advanced degrees in Library Science, equipping him with a strong theoretical foundation. Throughout his career, he has gained extensive practical experience in library management and information retrieval, holding key positions in prominent libraries and institutions. Driven by a passion for advancing library practices, Navjot Gokhale has conducted significant research in the field. His published papers and articles have contributed valuable insights and innovative approaches to information retrieval and preservation. Navjot Gokhale's dedication to sharing knowledge and expertise is evident through his active involvement in conferences, workshops, and seminars. He has been invited as a guest speaker and panelist, delivering engaging presentations on topics related to library management, information retrieval, and preservation.

Vidur Bahuguna is a distinguished author and expert in library management, specializing in the field of information retrieval and preservation. With a strong educational background in Library Science, Vidur Bahuguna possesses a solid academic foundation that complements his practical experience. He has worked in esteemed libraries and research institutions, honing his skills in library management and information retrieval. Vidur Bahuguna is a prolific researcher and writer, with numerous published papers, articles, and contributions to his credit. His research focuses on advancing information retrieval systems, exploring innovative approaches to searching and browsing, and addressing the evolving needs of library users in an increasingly digital landscape. His work has been well-received in the academic community, earning him recognition and accolades for his outstanding contributions to the field of library management and information retrieval.