Information and Communication Technology has revolutionized the concept of libraries. Each and every library is slowly getting digitized. A 'digital library' comprises digital collections, services and infrastructure to support lifelong learning, research, scholarly communication as well as preservation and conservation of our recorded knowledge. It is also a process of democratization of information. The book discusses the factors that will necessitate the traditional libraries to get digitized. The book also explains advantages and disadvantages of digital libraries, the requirement for building a digital library etc.