Working with Voices has been translated into some twenty languages to date and is one of the most influential workbooks for people who hear voices. It has been researched by W j Casstevens Phd Associate professor North Carolina State University Dept of Social Work She discovered that the workbook reduced both Anxiety and Levels of Depression amongst voice hearers.. The book is used as an aid in many hearing voices groups world wide. Ron Coleman has been a Voice Hearer for nearly forty years Whilst Mike Smith is Psychiatric Nurse and winner of the UK Nurse of the Year for his work on voices.