Since its foundation, the college has housed a library, providing books for all students, covering all the subjects offered by King's. Around 130,000 books are held: some available for teaching and for reference, others being rare books and manuscripts. The library operates a user-oriented purchasing policy: students and Directors of Studies recommend new purchases in their subject. There is both Wi-Fi and Ethernet internet access throughout the library as well as a library computer room. Special collections include a separate Music Library, the Keynes Library, a Global Warming collection, and an Audio Visual Library.