Introduction : action research in policy analysis and transition research / Koen P.R. Bartels and Julia M. Wittmayer -- Both critical and applied? : action research and transformative change in the UK water sector / Emma Westling and Liz Sharp -- Co-inquirer reflection / Chris Digman -- Cooperative research for bottom-up food sovereignty and policy change / Bálint Balázs and György Pataki -- Co-inquirer reflection / Csilla Kiss and Borbála Sarbu-Simonyi -- Transition scientivism : on activist gardening and co-producing transition knowledge "from below" / Shivant Jhagroe -- Co-inquirer reflection / Rutger Henneman -- Cultivating "sanction and sanctuary" in Scottish collaborative governance : doing relational work to support communicative spaces / James Henderson and Claire Bynner -- Co-inquirer reflection / Alison McPherson -- Negotiating space for mild interventions : action research on the brink between social movements and government policy in Flanders / Erik Paredis and Thomas Block -- Co-inquirer reflection / Dirk Barrez -- Soft resistance : balancing relationality and criticality to institutionalise action research for territorial development / Ainhoa Arrona and Miren Larrea -- Co-inquirer reflection / Ander Arzelus -- Lipstick on a pig? : appreciative inquiry in a context of austerity / Alison Gardner -- Co-inquirer reflection / Liz Jones -- Getting unstuck : the reconstruction clinic as pragmatic intervention in controversial policy disputes / Martien Kuitenbrouwer -- Co-inquirer reflection / Karima Arichi -- Exploring the use of audiovisual media for deliberation : reframing discourses on vulnerabilities to climate change in Nepal / Floriane Clement -- Co-inquirer reflection / Damakant Jayshi -- Really imagined : policy novels as a mode of action research / Sonja van der Arend -- Co-inquirer reflection / Martine de Vaan -- Conclusion : critical and relational action research for policy change and sustainability transitions / Koen P.R. Bartels and Julia M. Wittmayer