University Lecturer in the politics and government of Latin America, Fellow of St Antony's College. His research has been mainly concerned with the history of Colombia, Venezuela and Ecuador in the nineteenth and twentieth centuries, though he is also interested in themes of Argentine and Mexican history. He is an advisory Editor of the Latin American Monograph Series, Cambridge University Press. He has published articles on Colombian, Ecuadorian and Venezuelan history (the history of coffee, civil wars, fiscal history, problems of regional history and politics, cultural history...), and has edited selections from the works of Eloy Alfaro and José María Vargas Vila. He has also published the Joseph Brown collection of watercolours of Colombia in the 1820s and 1830s - among the earliest known pictures of the country - under the title Types and Customs of New Granada. His Colombian articles have been published under the title Del poder y la gramática (1993) and his recent works are an essay on Colombian violence in David Apter's collection, The Legitimisation of Violence, London, Macmillan, 1997, and Vida y opiniones de Mr William Wills, 2 vols, Bogota, Banco de la República, 1996. He has also written on Anglo-Argentine relations and the Falkland Islands and is a member of the South Atlantic Council. He is a Corresponding Member of the Colombian Academy of History.