Collective Vision: Igniting District and School Improvement - Hardcoverby Nancy Gordon (Author), Dianne Turner (Author) The book focuses on system wide improvement at the district, school, and classroom level. The approach will help readers see the importance of coherence across a system and how both horizontal and vertical alignment is necessary for a district to maximize results. Author Biography Nancy Gordon is a recently retired assistant superintendent from the Delta Schools District. She worked in Delta for forty