This Sustainable Library Development Training Package supports Peace Corps' Focus In/Train Up strategy, which was implemented following the 2010 Comprehensive Agency Assessment. Sustainable Library Development is a technical training package in Peace Corps programming within the Education sector. The training package addresses the Volunteer competency, "Facilitate improved teaching and learning skills and practices." The purpose of this 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. This training package includes detailed session plans that provide a foundation in sustainable library development for all trainees or Volunteers in education projects that include library development, or for any Volunteer who expects to undertake a library project activity as a secondary project. The post programming and training staff should review these session plans in advance to adapt them to the local context--including any language, culture, and gender issues--and develop a plan for implementation. There are eight sessions in the training package: One session is a stand-alone session for trainees in pre-service training (PST); the remaining seven sessions are designed for use as an in-service training (IST) workshop with Volunteers or Volunteers and their counterparts. Posts are also encouraged to share the training package with Volunteers, who may adapt the sessions to facilitate workshops in their own communities. Peace Corps posts that offer training in sustainable library development will pilot as many of these sessions as possible during FY12. Field feedback is a critical part of the Sustainable Library Development Training Package roll out. After these sessions have been piloted in the field, feedback from overseas programming and training staff will shape further improvements to the training package. (Contains 15 footnotes.)