Expansion: Superstar Digital Library, founded in 1993, is a professional digital library solution provider and digital book resource provider in China. Superstar Digital Library is one of the libraries in chinese numerals, which provides a large number of e-book resources for reading, including more than 50 categories such as literature, economy and computer, millions of e-books, 5 million papers, with a total page number of 65.438+0.3 billion, a total data of 1000000GB, a large number of free e-books and more than 65.438+0.6 million academic videos.