Abstract: A monograph for health professionals provides details on a special intervention program for preventing heart disease (MRFIT), covering counseling on how to: adopt and maintain a nutritious fat-controlled diet; avoid weight gain; abstain from cigarette smoking; and comply with drug therapy for hypertension. The health educational materials developed under this program in a 10-year (1972-82) multiple risk factor intervention trial are presented. Included for each risk factor area are: printed educational materials, forms for monitoring the progress of individuals, and an annotated listing of audiovisual materials and their availability.