Open  source library

B.ES.T library is a large collection of books, in which the collection is school.including digital sources, resources, and services. The collections also served as print, audio,

and visual materials in numerous formats, including maps, prints, documents, microform (microfilm/microfiche), CDs, cassettes, videotapes, DVDs, video games, e-books, audio books and many other electronic resources and can also be in digital form, stored on computers or accessible over the internet.

The term has acquired a secondary meaning: "a collection of useful material for common use". This sense is used in fields such as computer science, mathematics, statistics, electronics and biology.