Throughout the world... Over 9,000 organizations... world wide use the Dean Vaughn Total Retention System of instruction with unprecedented success! Including... educational institutions such as universities, community colleges, vocational career schools, high schools, middle schools, insurance companies, third party administrators, hospitals, health maintenance organizations, pharmaceutical companies, laboratories, legal organizations, correctional institutions, and government agencies including branches of the US military, Post Office, and Veterans Administration. More than 2.5 million people... have successfully completed one of our exclusive Dean Vaughn Total Retention System courses with an average retention rate of over 90%!