This four-part lecture series, led by Dr. Renee Johnson, associate professor of mental health at the Johns Hopkins Bloomberg School of Public Health, will describe best practices in the definition and measurement of specific demographic factors, identify challenges and controversies in measurement, and provide examples of how specific demographic factors are used in research. Though the focus is primarily on the United States, some international examples are provided and students with global health interests are encouraged to participate and apply the concepts to different contexts.