Disparities represent a lack of efficiency within the healthcare system and therefore account for unnecessary costs. With the affirmation of the Patient Protection and Affordable Care Act, reducing health disparities through enhanced public health data infrastructure and analytical capability will become essential for healthcare practitioners. This book explain how to maximize the use of various datasets from state health departments for assessing health disparity and for disease prevention. The authors offer practical advice on state public health data use, their strengths and weaknesses, data management insight, and lessons learned.