This book looks at why and how states should legally ban LGBTQ+ 'conversion therapy'. Few states have legislated against the practice, with many currently considering its legal ban. This book brings together leading academics, legal and medical practitioners, policymakers, and activists to illuminate the legislative and non-legislative steps that are required to protect individuals from the harms of 'conversion therapy' in different contexts. The book considers how best to address this complex and interdisciplinary legal problem which cuts across human rights law, criminal law, family law, and socio-legal studies, and which represents one of the key contemporary problems of LGBTQ+ equality and national and international human rights activism.