Since 1980, the mystique of Williams Syndrome has captured the interest of large numbers of scientists and attracted considerable media attention. Those diagnosed with WS display a unique pattern of behavioural, cognitive and emotional limitations and strengths with fascinating neurogenetic implications - a pattern that poses enormous challenges to their parents, teachers, clinicians and others. This book is a comprehensive synthesis of the expanding knowledge of WS. It integrates scattered research findings, clinical observations, and personal accounts and offers a wide range of effective interventions to maximise the potential of WS sufferers.