Growing interest in corporate social responsibility (CSR) has focused attention on the relationship between businesses and key stakeholders, such as NGOs and local communities. Curiously, however, commentators on CSR rarely discuss the role of trade unions, while commentators on employment relations seldom engage with CSR. This situation is all the more remarkable since unions are a critically important social actor and have traditionally played a prominent role in defending the interests of one key stakeholder in the company, the employee. Written by dedicated experts in their field, this book addresses a key gap in the literature on both CSR and employment relations, namely trade union policies towards CSR, as well as union engagement with particular CSR initiatives and the challenges they face in doing so. The research covers eleven European countries which, when taken together, constitute a representative sample of industrial relations structures across the continent. This book will be essential reading for scholars, students and practitioners of international business, employment relations, public policy and CSR. Its foreword is written by Philippe Pochet and Maria Jepsen, Directors of the European Trade Union Institute in Brussels.