This book offers a timely exploration of the continuous training of individuals, a subject crucial to both business competitiveness and societal progress in today's rapidly changing world. Addressing the digital and climate revolutions, it examines how lifelong learning helps workers adapt their skills to meet evolving demands while supporting active ageing for all citizens, even in retirement. Divided into three sections, the book features studies that combine theoretical insights and practical recommendations from renowned experts in education and law. The book stands out for its international scope, with chapters covering diverse national perspectives from countries such as the United Kingdom, the United States, Japan and various European nations. It uniquely integrates both education and legal perspectives, providing a comprehensive analysis that addresses gaps in existing literature. Readers will benefit from clear, accessible language, proposals for key stakeholders (e.g., policymakers, social partners), and coverage of pressing issues like vocational training for immigrants, legal frameworks for non-formal learning and the impact of digital transitions on workforce development. This book is an essential resource for academics, researchers, advanced students, legal professionals, educators, policymakers, trade unions, and employer associations. It offers valuable insights for anyone involved in Labour Law, social security, vocational training or workforce development on a global scale.