This report provides a comparative overview of teamwork, based on the European Working Conditions Surveys and 16 national contributions to a questionnaire. It considers how teamwork has developed as a new form of work organisation and takes into account the context at national and company level. The study assesses the positive and negative influence of teamwork on diverse aspects of working conditions, such as job autonomy, job satisfaction, work intensity, productivity and the learning environment. It also investigates the prevalence of teamwork according to various factors including sex, sector and occupation. The national contributions from the following 16 countries are available: Austria, Bulgaria, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Italy, the Netherlands, Portugal, Romania, Spain, Sweden and the United Kingdom.