Libraries have existed for hundreds of years but in today’s digital world, where we have at our fingertips access to an endless collection of information, a new standard of information literacy has emerged. Libraries are collections of books and other information resources gathered for the purposes of reading, study, and reference. A library as a collection or group of collections of books and/or other materials organized and maintained for use. Historically, libraries have served as places. The new role of libraries in the 21st century is to be a learning and knowledge center for their users as well as the intellectual commons for their respective communities where, to borrow the phrase from the Keystone Principles, people and ideas interact in both the real and virtual environments to expand learning and facilitate the creation of new knowledge. Libraries preserve knowledge so that none is lost, organize knowledge so that none is wasted, and make knowledge available so that no one need be deprived in this information age. Library services have brought a lot of changes to library operations there by making access to knowledge more convenient to user.