Every school has a culture whether or not the principal is attentive to it or shapes it. Culture is comprised of assumptions, beliefs, expectations, habits, and values which affect every aspect of the schoolhouse, and consequently student learning. Principals make a difference in the development of culture. They must actively engage in the components of culture if they are to foster a sustained improvement in student learning and achievement. By effectively assessing the climate in the building and implementing effective strategies to maintain and/or improve the various cultural components, the principal facilitates a set of norms and values that focus everyone’s attention on what is most important – student achievement.