Introduction: Jamie is an environmental geographer whose research explores popular understandings of Nature and the politics of environmental governance. His research projects span scales from elephants to microbes and include thematic interests in volunteering, rewilding, and the Anthropo-scene. His current focus is on the microbiome. This includes the geographies of the human management of hookworm, which are characterised by concurrent initiatives to deworm and reworm the world. A second interest is in participatory methods for engaging people with the microbes that live in their kitchens (www.goodgerms.org). Jamie runs the Oxford Interdisciplinary Microbiome Project (www.oximp.org). He is the author of Wildlife in the Anthropocene: Conservation after Nature.