As a matter of fact, you can book a room at the library.
Study rooms at the Blagg-Huey (Denton) Library (BHL) and the Dallas Center Library (DCL) can be reserved here. Information on BHL study rooms is available here; find specifics about DCL study rooms here.
Questions? Call 940-898-3719 (Denton) or 214-689-6580 (Dallas).