GRAHAM J. G. UPTON is a former Professor of Applied Statistics, Department of Mathematical Sciences, University of Essex. Dr. Upton is author of The Analysis of Cross-tabulated Data - 1978 - and joint author of Spatial Data Analysis by Example, both published by Wiley. He is the lead author of The Oxford Dictionary of Statistics . His books have been translated into Japanese, Russian, and Welsh.

Bernard Fingleton is a Director of Research in the Department of Land Economy, University of Cambridge. Previously he was University Reader in Geographical Economics at Cambridge University and a Professor of Economics at Strathclyde University, Glasgow, Scotland.