David O'Sullivan, PhD, is Associate Professor of Geography at the University of Auckland, New Zealand. David J. Unwin, MPhil, formerly professor of geography at Birkbeck College in the University of London, UK, is now retired. He is also the co-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.
?This text provides a well organized introduction to the fundamental concepts of spatial analysis for GIS students.? (GISWeekly, 13 December 2012)