Mattie Terry Library serves 800 residents in the City of Valliant. Established in 1998, the library belongs to the Southeast Oklahoma Library System. The library system maintains 400,000 volumes and circulates 753,000 items per year. Mattie Terry Library offers books, e-books, audiobooks, magazines, newspapers, programs for all ages, a meeting room, test proctoring services, public computers, free wireless internet access, interlibrary loan, printing, copying, faxing, laminating, and notary services.