This book is the end result of many influences, all of which have contributed to its final shape. We would like to thank all those people who have contributed to the development and formation of the ideas behind this book. This is a long list. In recent years it includes our students and colleagues at the University of Glamorgan. Prior to this our many colleagues in our own clinical practices who we have worked with and our past teachers and mentors who moulded our ideas about working with people. We would like to thank Lyn Harris for providing the cartoons that are included in this book. We would like to acknowledge the.