Major Depression in the Population: A Public Health Approach is an online course offered by Johns Hopkins University. This course illustrates the principles used in Public Health that apply to depressive disorders, including epidemiological principles, transcultural psychiatry, health services research, and prevention. This course also explores the public health approach to disease by using depressive disorder as an example. Topics covered in this course include maternal depression, the burden of depression on the population, etiological clues for the cause of depressive disorders, unmet need for care, barriers, and possible programs to improve access for depressive treatments. This beginner level course is 6-weeks long and consists of 5 modules with videos to watch and a final assignment to complete. It is recommended to spend 2 hours a week to complete all course materials. Those who pass all graded assignments will complete the course.