Organizational culture is defined as the shared values and beliefs that guide behavior within each organization, and it matters because it is related to performance. While culture is generally considered important, it is mysterious and intangible to most leaders. The first step toward understanding organizational culture is to measure it properly. This chapter describes methods for measuring culture in health-care organizations and how these methods were implemented in a large academic medical center. Because of the consistent empirical link between the dimension of communication, other culture dimensions, and employee satisfaction, special attention is focused in this area. Specifically, a case study of successful communication behaviors during a major "change management" initiative at a large academic medical center is described. In summary, the purpose of this chapter is to demystify the concept of culture and demonstrate how to improve it.