Sibling sexual abuse is considered one of the most common forms of child sexual abuse within the family environment, yet it is often ignored, downplayed, or dismissed despite its impact on survivors. In this book, Christiane Sanderson sheds light on this hidden phenomenon, offering a rigorous analysis of the nature and dynamics of sibling sexual abuse. It provides a clear explanation of the difference between developmentally appropriate consensual sexual exploration and developmentally inappropriate non-consensual sexual behavior. Emphasis is placed on how these behaviors affect the sibling who suffers, the sibling who perpetrates the abuse, the wider family, and adult survivors. This book is essential reading for anyone involved in the assessment, support, protection, or treatment of individuals or families affected by sibling sexual abuse, as well as for all those working with adult survivors.