In What Works in Schools: School Leadership in Action, 2nd Edition, you will explore Robert J. Marzano’s factors for an effective school. You will also learn about Marzano’s general principles for improving student performance and school productivity. More specifically, you will examine Marzano’s five school-level factors in student achievement. These factors, involving a combination of policy, procedure, and practice, have proven highly effective in helping make schools genuine communities of learning. Through video examples and in-depth readings, you’ll learn how to improve your school or district.