The purpose of the Sustainable Library Development Training Package is to support and provide guidance to Peace Corps Volunteers engaged in library projects as both primary work assignments and secondary project activities. The training package is intended to strengthen the work of Volunteers in partnership with their communities and to help Peace Corps better demonstrate its impact. Staff or Volunteers can use this training package to train other Volunteers and community members on how to start, manage, and sustain community libraries whether these projects are tool libraries, seed libraries, mobile libraries, or traditional book-and-mortar libraries.