This book addresses the links between unemployment, precariousness work and health risks from various scientific frames of reference as well as those of policy-makers. The authors range from major classics in the field to newcomers from several countries presenting their research results. The authors include also representatives of several international organizations. The anthology is of a multidisciplinary character and its articles evaluate the contributions of various projects, programmes and standard public services for persons at risk of labour market exclusion. It updates the research agenda, which is most topical during the financial crisis and economic restructuring of today.