Public health affects us all. As such, there will always be a need for professionals to monitor the health of the public and create programs to enhance our health. Well-trained public health leaders are critical to make the entire process work. This text reflects the complexities of leadership in Public Health as well as the overall needs of effective leadership in a constantly changing social environment. In addition, the book examines the impact of health reform, with an expanding definition of public health and understanding of how our leaders will be affected by these new changes. Part I explores the theories and principles of leadership, leadership styles and practices, the public health system, and the five levels of public health leadership. Part II presents the core functions model and its application to public health leadership. In Part III, the author examines the leadership tools needed for the 21st-century. Part IV presents information on the personal evaluation of leadership and the evaluation of leadership programs. Part V looks to the future and presents some emerging public health trends. Throughout the book, case studies written by public health leaders are presented. Students also benefit from leadership exercises and discussion questions in each chapter.