ALASTAIR BONNETT is Professor of Social Geography at Newcastle University. Previous books include What is Geography? (Sage, 2008) and How to Argue (Pearson, 2001). He has also contributed to history and current affairs magazines on a wide variety of topics, such as world population and radical nostalgia. Alastair was editor of the avant-garde, psychogeographical, magazine Transgressions: A Journal of Urban Exploration between 1994-2000. He was also involved for many years in situationist and anarchist politics. His latest research projects are about memories of the city and themes of loss and yearning in modern politics.