E-libraries, or electronic libraries, are digital collections of books, articles, and other resources that can be accessed online. They provide users with the ability to read, download, and search for materials from anywhere with an internet connection. E-libraries often include a wide range of formats, such as e-books, audiobooks, and academic journals, making them a versatile resource for students, researchers, and the general public. Many e-libraries are operated by institutions like universities or public libraries, offering free or subscription-based access to their collections. Popular platforms include OverDrive, Libby, and Project Gutenberg, which provide users with a vast array of literature and educational materials. E-libraries enhance accessibility and convenience, allowing users to explore a wealth of information without the need for physical books.