DeLetis is an international and nationally certified alcohol and drug counselor (CADC). He is also the co-author of Kill the Craving, a book that introduces Exposure Response Prevention (ERP) to professionals and their clients who want a new and innovate way to deal with their addiction. Mr. DeLetis, the creator of ERP for substance abuse, has been utilizing this process to help the clients to fight their addictions for the past 18 years. He has developed training seminars, in-service training's, as well as created a full professional ERP kits for counselors, psychologist, and doctors to learn this exciting new approach to substance abuse treatment. Over the years Mr. DeLetis has been employed in the criminal justice field, as a probation officer, and as a mental health counselor.