A competent workforce is critical to the maintenance and expansion of public health activities. The signature degree in the field—the Master of Public Health (MPH)—is available to students who can commit 1–2 years (depending on prior degrees and experience) for full-time residential study; to those who can commit 2–4 years for part-time study; and as an online degree; to those who can pay tuition, often representing a heavy financial burden.