This is an important book. One of the major titles of the year in which Tomlinson and team look at differentiation beyond the classroom and into the school as a whole. Previously, most of Tomlinson’s writing has centered on the classroom teacher, introducing and coaching the NCLB crowd into a different mentality where many paths are given to individual students to achieve learning objectives. Direct teaching advocates mark one path toward Rome. Tomlinson defines many roads and in this book tries to explain how the school as a school adopts such a teaching philosophy. The chapters lay out the plan as one would expect: Setting the Stage for Change Toward Differentiation; Leadership for Change Toward Differentiation; The Nature of Professional Development for Change Toward Differentiation; Monitoring and Evaluating Change Toward Differentiation; Snapshots of Change in several schools; Change in actual classrooms. I would guess that Tomlinson will have a spotlighted keynote address at the next ASCD conference, so get a leg up on that presentation by reading this book cover to cover before attending, or just use it as a volume to study with the professional learning community. Excellent. P.S. Identify the major areas that the learning commons can have as differentiation happens in your school.