Dr Camilla Allen is a landscape architect and historian. She completed her doctorate, ‘The Making of the Man of the Trees’, in the Department of Landscape Architecture at the University of Sheffield on the forester and conservationist Richard St. Barbe Baker (1889–1982). Her research focuses upon the relationship we have with the natural world, with trees as the focus, which she explores through particular places, people and events like Britain's three tree cathedrals, the designation of special groves within California's coast redwood forest, and the commemorative planting of trees in Sheffield during and after the Great War. Along with Dr Jan Woudstra she has edited The Politics of Street Trees which is published by Routledge.