Dr Decker is Urban Studies Foundation (USF) International Fellow at the African Studies Centre, Oxford University. He is Senior Lecturer in the Department of History and International Studies, Osun State University, Osogbo, Nigeria. He is interested in the self-consciousness of underdogs in micro and macro-historical contexts. He was Africa-Oxford Fellow at Oxford University as well as Leventis Fellow at the School of Oriental and African Studies (SOAS) University of London and has held the travel grants of the Social Sciences and Humanities Research Council of Canada, University of Montreal, Canada, and the Graduate Institute of International and Development Studies, Geneva, Switzerland. In his current study, he engages petitions written in colonial Lagos as texts to unveil the connectedness between self, agency and urbanity of everydayness among the poor. He is Fellow of the Ife Institute of Advanced Studies and Fellow of the Lagos Studies Association. He is the author of Matrix of Inherited Identity: A Historical Exploration of the Underdog Phenomenon in Nigeria's Relationship Strategies 1960-2011 and A History of Aviation in Nigeria 1925-2005.