The Siam University Central Library contains over 200,000 textbooks, magazines, periodicals, academic journals and technological books, of which many are in English.  The library is conveniently located on the second and third floors of Building 12, and can accommodate approximately 1,000 users at any time in its air-conditioned reading rooms, individual learning rooms and group discussion rooms.  It also features a large computer lab with high-speed internet access, an online-database, motion picture CD’s, as well as other audio/visual materials, computer software and CD-ROM’s.  A separate Graduate School Library is located on the 3rd floor of Building 19, the Royall Majesty Jubilee Building.

Siam University in collaboration with the Stock Exchange of Thailand (SET), have established and opened a new SET and Business Library named “Maruey Library” located on the 6th floor of the Royal Jubilee Building. This library was inaugurated by Mr. Maruey Padungsit, himself, Former Managing Director of SET.   The Library contains books and information mostly on the Stock market of Thailand and worldwide. The service is open not only for the Siam University students, faculty, or lecturers but also for outsiders such as entrepreneurs; business men, SMEs, investors and students from other Universities or schools, including the parents.

The user can receive data regarding any Thai Company profile and their financial report and also an analysis on the investment bonds, stocks, short-term and long-term Certificates of Deposits, Government bonds, pension funds and other investment options.