values. CSES (Comparative Study of Electoral Systems) – The international election study integrates data from post-election surveys from approximately 40 countries. GESIS Panel - The GESIS Panel offers the academic social science community a possibility to collect primary data within a probability-based omnibus access panel free of charge. The data are representative of the German speaking population aged between 18 and 70 years (at the time of recruitment) and permanently residing in Germany. Data collected within the GESIS Panel can be used by academic researchers free of charge, e.g. to conduct secondary research. Processing & Analyzing Data Survey Methods Consulting for Data Analysis – Consulting services for research projects. Weighting and Analysis of Complex Samples – Services for calculating design and fitting weights and handling missing values. Data Harmonization at all Levels - Advice, tools and thematic harmonized data from different sources. Metadata & Tools for Analyzing Official Data - Tools for the preparation and analysis of official microdata. Analyses in the Safe Rooms - Analyzing sensitive and restricted-access data on site. Tools for Analyzing Digital Behavioral Data - Comprehensive services and information on the collection and analysis of digital behavioral data. Archiving and sharing Archive and share data - Archiving social science data in the GESIS data archive Share scripts and syntax - Share scripts and syntax via SowiDataNet|datorium. Share measurement instruments - Share tested measurement instruments via ZIS (Open Access Repository for Measurement Instruments). Archive and share open access publications - Find and publish publications via Social Science Open Access Repository (SSOAR). Register data - Institutions can get DOIs for their data. Training GESIS offers a wide range of events, especially training courses in social research methods, that develop participants’ applied research methods skills in depth and in breadth covering the whole survey life cycle. Since 2012 the GESIS Summer School in Survey Methodology is offered for PhD students and young researchers. The GESIS Spring Seminar on advanced methods of quantitative data analysis and the GESIS Methodenseminar on basic knowledge and skills in quantitative data analysis are taking place for over 40 and 30 years, respectively. The trainings are completed by GESIS Workshops on current research methods and survey programs. Research GESIS conducts research on content and methodology focusing on survey methodology, social structure, attitudes and behaviors in modern societies, applied computer science and information science. GESIS Research Data Centers The GESIS Research Data Centers carry out knowledge