लेखक: David Unwin

Peter Fisher is the editor of Re-Presenting GIS, published by Wiley. David J. Unwin, MPhil, formerly Professor of Geography at Birkbeck College in the University of London, UK, is currently Director of Learning Programmes at UKe Universities Worldwide. He is also the author of Computer Programming for Geographers (with J. A. Dawson) and coeditor of Visualization in Geographic Information Systems (with Hilary M. Hearnshaw), both published by Wiley.