Professor Peter Allen is Emeritus Professor at Cranfield University. He developed and ran the Complex Systems Research Centre in the School of Management at Cranfield University. He is still actively involved in on-going research. He has a Ph.D. in Theoretical Physics and from 1970 to 1987 worked with Professor Ilya Prigogine at the Université Libre de Bruxelles on research that led on to the development of Complexity Science. He is an Editor in Chief of “Emergence: Complexity and Organization”. He has written and edited several books in the field of complexity and socio-economic modelling and published well over 200 articles in a range of fields including ecology, social science, urban and regional science, economics, systems theory, and physics. In 2011 he co-edited the Sage Handbook on Complexity and Management and in 2015 co-authored Embracing Complexity (OUP) with Jean Boulton and Cliff Bowman. He has been a consultant to multiple governmental and non-governmental organisations, the United Nations University, the European Commission and the Asian Development Bank. He has managed a number of large European and UK research contracts.