This guidebook provides a framework for planning schoolwide improvements. It is intended to help educators redesign schools, move beyond piecemeal reforms, and reconfigure entire academic programs to help every student meet challenging standards. The guidebook describes the context of comprehensive school reform and offers a process for conducting comprehensive data analysis, planning, and implementation. It includes tools and activities to facilitate planning and implementation, profiles of successful schools, and lists of additional resources. The first of nine sections offers an introduction and the purpose of the guide, which is followed by a discussion of the context of comprehensive school reform. The next five sections discuss the key elements of comprehensive school reform and include an explication of a demonstration program; notes on how to build a solid foundation for schoolwide reform; advice on gathering information and then planning, implementing, and sustaining comprehensive schoolwide reform; and a list of tools and activities needed for reform efforts. The document includes seven profiles of successful schools and lists various resources that can be used to aid the reform effort. Two videotapes that provide an overview of comprehensive school reform and document visits to several schools as they implemented reform efforts are included. (RJM)