[Excerpt] Eurofound’s European Working Conditions Survey (EWCS) has been measuring working conditions across the European Union for the past 20 years. It is a unique instrument for better understanding the quality of work and employment and the factors influencing it. Eurofound is committed to improving further the quality of the EWCS and strengthening its relevance for Eurofound’s tripartite stakeholders. Some of the most important sources of information for the development of the EWCS questionnaire are the national surveys on working conditions. This compilation is a follow-up of a study of working conditions surveys commissioned by Eurofound in 2006 which covered both national and transnational working conditions surveys (Eurofound, 2007). The main goals of this inventory are to: update the background information on existing national working conditions surveys; create a source of basic information from national working conditions surveys related to methodologies, quality control procedures, fieldwork and findings; provide a practical resource for researchers, policymakers, social partners and others with a professional interest in working conditions.