The mission of the Friends of the Bulverde Area Rural Library District is to promote public use of the Mammen Family Public Library; to develop appreciation of its value as a cultural and educational asset to the community; to supplement library services and materials beyond the library's normal operating budget; and to encourage the extension and improvement of its services. The corporation also supplements the library's mission to provide an environment that inspires a life-long love of learning with programs and activities that make available educational and cultural opportunities not normally accessible to members of the community.