Angelman Syndrome by Bernard Dan 
This book provides a comprehensive review of clinical and genetic issues, natural history, possible pathophysiological pathways, specific clinical problems (motor impairment, behaviour, learning difficulties, communication, sleep, epilepsy), clinical neurophysiology, neuropathology, rehabilitation and basic research in the field of Angelman syndrome. This condition is a neurogenetic disorder characterised by developmental delay, absence of speech, motor impairment, epilepsy and a peculiar behavioural phenotype. It is caused by the lack of expression of the UBE3A gene associated with various abnormalities of chromosome 15q11-13.