Wealth and the wealthy have received relatively little attention from social scientists despite a growing wealth gap. Aimed at a broad social science and public readership, this book draws on new data on wealth to answer the following key questions: What is wealth? Who has got it? Where might we draw a 'wealth line'? Who lies above it? And what might policy do about wealth and the wealthy? Using data sources from the HMRC to the Sunday Times Rich list, this book provides a comprehensive and critical discussion of these issues, and looks at potential policy responses, including 'asset-based' welfare and taxation.