"Partnerships for College Access and Success: A Technical Assistance Guide, Toolkit and Resource Guide" reflects lessons learned from four years of planning, implementation and evaluation work through the Partnerships for College Access and Success (PCAS) initiative. It is the result of the collaboration between AED (Academy for Educational Development), the eight partnerships funded under this initiative, the Lumina Foundation for Education which provided the funding, and the OMG Center for Collaborative Learning, who was the external evaluator and provided both formative and summative feedback to all of the participants. Collectively the authors have learned much about the context, practices and policies related to linking postsecondary access activities to success, defined as retention and attainment of a degree or technical certificate. "Partnerships for College Access and Success" provides a roadmap for how to develop a community-wide initiative that is inclusive of community groups and organizations and engages them in the effort to connect high school reform with improving students' outcomes in postsecondary education and in connecting working adults and disconnected youth to postsecondary education and providing support for their success. Since December 2003, the Academy for Educational Development (AED) has administered and provided technical assistance to the eight grantees funded by Lumina Foundation for Education. The tools in this guide should help any researcher, practitioner or organization interested in breaking down barriers to postsecondary access, retention and attainment for underrepresented students. Individual sections contain references and glossaries. A list of resources is included.