Wissenschaft weltoffen 2021 : Facts and Figures on the International Nature of Studies and Research in Germany and Worldwide The study has been analysing the the international nature of studies research and universities in Germany since 2001. As well as highlighting the trends in the German higher education and research sector it presents data relating to particularly relevant study regions such as the USA the United Kingdom and Asia. The study integrates the international data published by the OECD and UNESCO with the national data from the Federal Statistical Office. In combination with other indicators it provides a valid basis for long term analysis. Wissenschaft weltoffen is published as separate German and English editions. It is available free of charge at wbv open access.de.