Tim May is Professor of Social Science Methodology in the Sheffield Methods Institute, University of Sheffield. He originally trained and worked as an agricultural engineer and following an evening return-to-study course, studied at the LSE, Surrey and Plymouth universities. In addition to his teaching across a range of subjects, Tim has authored and edited sixteen books, including new editions, which have been translated into fifteen languages, as well as over one hundred and eighty articles, book chapters, research reports and policy briefings. His work has been funded by national and international research councils and the topics of his research and writings cover: urban knowledge exchange; policy development and learning; universities, cities and socio-economic development; management and organizational change; research methods and methodology; social and political theory and philosophy of social science. Beth and Tim are currently co-authoring Reflexivity: The Essential Guide (2017) and a fifth edition of Social Research: Issues, Methods and Process (2018) and working on a research programme entitled ‘Realising Just Cities’. Tim is also writing a third edition of Thinking Sociologically (co-authored with the late Zygmunt Bauman, 2018). Beth Perry is Professorial Fellow in the Urban Institute, University of Sheffield. She has followed an interdisciplinary path, undertaking degrees in European Studies and Modern Languages, before completing a PhD in Sociology and Political Science. Since 2000 she has worked in and subsequently led urban research centres, with a focus on the processes and practices of urban transformation. Beth is currently the UK Programme Lead for the Mistra Urban Futures centre, which has established local interaction platforms in South Africa, Kenya, Sweden and the UK to explore the limits and strengths of coproduction in realising just cities. She holds major grants from the Economic and Social Research Council’s Open Research Area and Urban Transformations programmes (‘Jam and Justice’ and ‘Knowledge Matters’) and has co-led a large Arts and Humanities Research Council project under the Connected Communities programme (‘Cultural Intermediation: Connecting Communities in the Creative Urban Economy’). With Tim May she is currently writing Reflexivity: The Essential Guide (2017) and a fifth edition of Social Research: Issues, Methods and Process (2018).