The application of psychological principles that lead to the acquisition of skills, knowledge, attitudes, and behaviors for improving safety and health conditions in the work environment is illustrated by case examples. The emergent pattern of successful occupational health education can be described as a process consisting of instruction, psychological reinforcement, and establishment of new norms of safe behavior for workers. To realize maximum effect from education programs, occupational physicians and other occupational health professionals should upgrade and expand their understanding of health education as well as their health education skills.