Douglas W. Woods  and Raymond G. Miltenberger 

We would like to thank the contributors to this book. Without their expertise and dedication to the project, this book would not have been possible. We would also like to thank Kluwer Academic Publishers for agreeing to publish the book and for their help and guidance throughout the process. 
We would both like to thank the clients and research participants we have worked with over the years. Because they allowed us into their lives, we have been able to understand the ramifications of repetitive behavior  disorders. Their stories provided the motivation for this book.  Personally, Doug Woods thanks his wife Laurie, his parents Bill and Jane,  his brother Ted, sister Julie, nephew Devin, Bernie Homan, and Rich and Pat  Olsen. They have provided me with love, support and encouragement  throughout my life.  I would like to personally dedicate this book to the  memory of my grandfather, Alfred Homan, grandmother. Hazel Buschur,  and aunt, Jean Dunno.  Personally, ROM thanks his wife, Nasrin, and children, Ryan and  Roxanne, for their support and encouragement. I owe a debt of thanks to all  of the graduate students who have toiled on my research team over the years 
as we have evaluated procedures for the analysis and treatment of habit  disorders.