Book excerpt: Over the last decade there has been dramatically increased interest in the ways that technology has been used in the abuse and exploitation of children, due in part to increasing numbers of convictions for child pornography-related offenses. Opinion swings between those who feel that there is a danger of distorting the threat posed to children by technology, and those for whom it appears that the threat has been grossly underestimated. Current literature surrounding the debate at times seems to create more questions than answers and what quickly becomes apparent is that the data we have to inform our understanding is partial, potentially context specific, and at times seemingly contradictory. This book broadens our understanding of the complex nature of online sexual exploitation of children and considers the risk that those engaged in Internet-related offences pose to children in both the online and offline environments. It focuses on cutting-edge research and conceptual thinking that views perpetrators within context, examines those impacted by such offending, describes emerging legal and policy issues, and proposes innovative strategies for prevention within a dynamic global environment. Understanding and Preventing Online Sexual Exploitation of Children responds to the growing call for help across all practice areas, from judicial to therapeutic, and will provide an invaluable resource for practitioners and policy makers working in the field, as well as students and academics studying sexual exploitation and cyber crime.