Book excerpt: The twelve case studies in this book were written to be taught at school board training institutes conducted by the Center for Reform of School Systesm (CRSS). They were selected from the CRSS portfolio of over fifty cases because their center of gravity is district reform strategy. They describe reform initiatives in nine major urban school districts across the United States. Of the nine shcool boards, seven were elected, one was appointed, and one was a hybrid board with both elected and appointed members. Collectively, these cases span the last two decades. They should be of interest to all who seek to understand the challenges of urban education reform, but they will be particularly compelling for urban school leaders charged with the repsonsibility of transforming their school districts.