Policy experts reflect on the first twenty years of self-governance in Wales. Following a 1997 referendum, the United Kingdom established the Welsh Parliament and began a process known as "devolution," granting Wales increasing powers of self-governance over the next twenty years. This collection reflects on the course of Welsh devolution and the emergence of a so-called "Welsh stripe" in social democracy. Drawing on previously unpublished interviews with key participants in Welsh devolution, contributors analyze a range of policy areas and reveal a complex picture of political change and continuity throughout the country. The Impact of Welsh Devolution offers an essential starting point for thinking about the future of Wales in the twenty-first century.