"This book, written and edited by internationally recognized clinician-scientists in the field, is a welcome addition to the sleep medicine, movement disorder, and neuropsychiatric literature. The authors wish to discuss how 'specific sleep disorders have emerged as important early manifestations of synuclein related neurodegeneration specific for PD'. ... This is an excellent, unique, and useful book targeted at clinicians involved in the care of patients with PD and related disorders." (Michael Joel Schrift, Doody's Book Reviews, October, 2015)