Introduction / Benjamin Leruth, Stefan Gänzle and Jarle Trondal
Part 1. Conceptualising differentiation
Part 2. Institutionally-based differentiation
Part 3. Policy-based differentiation
Part 4. Territorial differentiation
Part 5. Brexit
Epilogue. Polycrisis and Resilience in the European Union: Covid-19 and avenues for future studies / Marianne Riddervold, Akasemi Newsome and Jarle Trondal.