Once almost universally prohibited, assisted dying is now legal in a growing number of countries across Europe, North America, Australasia and South America. In the UK, as elsewhere, the question remains deeply contested, raising profound legal, moral and practical challenges. This book draws on extensive original research into Westminster Parliamentary debates, as well as international evidence from jurisdictions where assisted dying is legal, in order to clarify the key arguments for and against reform. Examining principles, stakeholder perspectives and judicial rulings, it offers the knowledge, context and sensitivity to enable readers to critically engage with one of the most complex and pressing challenges in contemporary practice and policy.