A library where we collection of sources, resources, and services, and the structure in which it is housed it is organized for use and maintained by a public body, an institution, or a private individual. In the more traditional sense, a library is a collection of books. It can mean the collection itself, the building or room that houses such a collection, or both.
Nowadays there are a lot of book out there, some people can afford some people cant afford it to — purchase an extensive collection themselves, who need material no individual can reasonably be expected to have, or who require professional assistance with their research. Libraries often provide a place of silence for studying.
A digital library is a library in which collections are stored in digital formats (as opposed to print, micro-form, or other media) and accessible by computers.The digital content may be stored locally, or accessed remotely via computer networks. A digital library is a type of information retrieval system. Many academic libraries are actively involved in building institutional repositories of the institution’s books, papers, theses, and other works which can be digitized or were ‘born digital’. Many of these repositories are made available to the general public with few restrictions, in accordance with the goals of open access, in contrast to the publication of research in commercial journals, where the publishers often limit access rights. Institutional, truly free, and corporate repositories are sometimes referred to as digital libraries.
And here some links where student can find more references in other University:-