I want to begin by thanking three people who got me started in mobile crisis home treatment. First is Canadian psychiatrist Dr. Fred Fenton, whose book on his landmark Montreal Study first gave me the idea. Second is ex-Director of Psychiatric Services at Grand River Hospital, Kitchener, Ontario, psychiatrist Dr. David Barnes, who certainly created "an environment that tolerates risk taking." Third is social worker James Holland, the first manager of the Hazelglen Program, the first mobile crisis home treatment service in Canada, who ably translated our ideas into practice and provided strong leadership. This book would never have gotten past the first two chapters if Brunner-Routledge editors Toby Wahl and Bernadette Cappelle had not recognized the need for a book on an uncommon subject. They were able to take my original idea and mould it into a much more interesting form. Paula Hendsbee edited my first two chapters for the proposal. Much of what I know about treating patients in Mobil Crisis Home Treatment I have learned from the Hazelglen staff. For many evenings we met in a book group summarizing their experience, skills, and knowledge into a format suitable for a book. For that I thank