This book provides a refreshing and potentially controversial exploration on the effectiveness of clinical supervision as provided by external supervisors. It is based on a study on a drug and alcohol rehabilitation centre in Melbourne Australia, where counsellors, managers and health professionals from all backgrounds received both group and individual supervision for a 12 month period. It is the author’s goal to provide a clearly rendered perspective on the necessity of regular and ongoing support of the health professional. The uniqueness of this book is in it’s applicability to all levels of health professionals, and places the supervisee as the pivotal focus of supervision. Furthermore this book posits that supervision is optimally provided by external supervisors and not line managers, as is often the case in welfare and community agencies in Australia. The context of drug and alcohol issues are discussed as is the notion of tailored supervision. The direct connection of supervision and boundaries is also highlighted. New definitions and understanding of clinical supervision is the final result.