<P>This book investigates the causes and consequences of image-based sexual abuse in a digital era. Image-based sexual abuse refers to the taking or sharing of nude or sexual photographs or videos of another person without their consent. It includes a diversity of behaviours beyond that of "revenge porn", such as the secret trading of nude or sexual images online; "upskirting", "downblousing" and other "creepshots"; blackmail or "sextortion" scams; the use of artificial intelligence to construct "deepfake" pornographic videos; threats to distribute photographs and videos without consent; and the taking or sharing of sexual assault imagery. This book investigates the pervasiveness and experiences of these harms, as well as the raft of legal and non-legal measures that have been introduced to better respond to and prevent image-based sexual abuse. </P><P></P><P>The book draws on groundbreaking empirical research, including surveys in three countries with over 6,000 respondents and over 1