The book examines the evolving landscape of minimum income protection schemes. It analyzes the historical development, current state, and future challenges of policies designed to provide a basic income floor for individuals and families, considering economic, social, and political factors that influence their design and effectiveness.

The book is likely to be regarded as a comprehensive academic analysis of income support policies. Its focus on the 'flux' suggests an examination of contemporary challenges and potential future directions in social welfare economics. The subject matter points to a dense, specialist text aimed at policymakers, economists, and social scientists.