This is a timely book. The question of how to help people with challenging behaviour -and how to design and manage services so that staff, families and users feel that what should be done is being done - is at the top of the agenda. Failure to deal com petently with the issue results in disaffection, poor quality ser vices and a less than optimal quality of life for service users. Moreover, the credibility of services for all people with learning disabilities is intimately connected with h...