Globalisation has put national labour movements under severe pressure, due to the increasing transnationalisation of production, with the production of many goods being organised across borders, and the informalisation of the economy. Through a range of case studies, this volume examines the possibilities and obstacles to transnational solidarity of labour in a period of global restructuring and changing global political economy. It brings together a range of international and transnational case studies, examining successful and failed transnational solidarity covering inter-trade union co-operation as well as co-operation between trade unions and social movements within the formal and informal economy, and the public and private sector. It is structured in six parts and examines:• Globalisation and the new challenges for transnational solidarity• Inter trade union co-operation across borders. • The dynamics of co-operation between trade unions and social movements across borders, looking at developing and developed countries. • The struggles to defend the public sector against private service providers. • The possible ways forward towards transnational solidarity of formal and informal labour in the global economy. This book will be of interest to students and scholars of International Political Economy, International Relations, Industrial Relation, Globalisation, Geography and History.