Part 1. Infrastructures and Open Science in Social Science Research – An Overview.- Chapter 1. Research Infrastructures: Concepts and Roles (Giovanni Cerulli, Emanuela Reale).- Chapter 2. Research Infrastructures and the Open Science Roadmap: European and Italian Strategies and Policies (Massimiliano Saccone, Daniele Bruschi, Marco Sprocati, Alessandra Maria Stilo).- Chapter 3. From Principles to Practices: FAIR Data and the Infrastructural Turn in Social Sciences (Sonia Stefanizzi, Domingo Scisci).- Chapter 4. Ethical Issues in a Research Infrastructure for Empirical Social Sciences (Cinzia Caporale, Giulia Sciolli, Roberta Martina Zagarella).- Part 2. The FOSSR Contribution to Research Focus Areas.- Chapter 5. Project Background Objectives and Impact (Giovanni Cerulli, Emanuela Reale).- Chapter 6. Probabilistic Surveys to Monitor Population and Societal Change (Loredana Cerbara, Ferruccio Biolcati Rinaldi, Giulio Ecchia, Dario Germani, Letizia Mencarini, Claudia Pennacchiotti, Ilaria Primerano, Michele Santurro, Luciana Taddei, Cristiano Vezzoni, Guglielmo Weber).- Chapter 7. Investigating the Transformation of Societal Ideas, Values and Civicness: The Contribution of Panel Data and CIVES Observatory (Andrea Simone, Andrea Orazio Spinello, Emanuela Reale, Salvatore Vassallo).- Chapter 8. Poolpo: An Online Platform for Large-scale and Long-term Behavioral Experiments to Study the Causal Mechanisms of Individual and Social Behavior (Giulia Andrighetto, Maria Bigoni, Eva Vriens).- Chapter 9. Supporting Evidence-Based Policy Making via the FOSSR’s Policy Learning Platform (PLP) (Giovanni Cerulli, Barbara Guardabascio, Fabrizio De Fausti, Federico Brogi, Salvatore Riegler).- Chapter 10. New Modes of Knowledge Production to Address Societal Challenges (Antonio Zinilli, Emanuela Varinetti, Lorenzo Giammei, Andrea Orazio Spinello, Andrea Simone, Emanuela Reale).- Chapter 11. Deepening the Structure of the National Industrial System (Massimiliano Guerini, Massimo Gaetano Colombo).- Chapter 12. Building the RIs Facility for Open Science (Mario Ciampi, Mario Sicuranza).- Chapter 13. Governance and Collaboration for Impact (Daniele Bruschi, Daniela De Gregorio, Alessia Fava, Maria Elisa Rosati Massimiliano Saccone, Marco Sprocati).- Chapter 14. Enhancing Skills, Building Capacity: the FOSSR Approach to Training in Social Science Research Infrastructures (Andrea Orazio Spinello, Serena Fabrizio, Claudia Pennacchiotti).- Chapter 15. Communication Engagement and Community Building: Enabling the Use of Research Infrastructures (Serena Fabrizio, Rita Giuffredi, Erica Rizziato, Alessandra Maria Stilo, Elisa Storace, Valentina Tudisca).- Part 3. Theoretical Perspectives and Methods.- Chapter 16. Collaborative Research Models (Massimiliano Assante, Elisa Molinaro).- Chapter 17. Computational Social Science (Rocco Paolillo, Giusy Giulia Tuccari, Sara Zuppiroli, Carmelo Fabio Longo, Giovanni Cerulli, Antonio Zinilli, Lorenzo Giammei, Andrea Giovanni Nuzzolese, Francesco Poggi, Misael Mongiovì, Miguel Ceriani).- Conclusions: Contributing to Global and National Trends in Open Science: Challenges and Future Directions (Giovanni Cerulli, Emanuela Reale).