Harold Carter is Emeritus Professor of Human Geography, University of Wales. John Aitchison is an award winning statistician who has been an Honorary Senior Research Fellow in the Department of Statistics at the University of Glasgow since 1995.

Harold Carter is Emeritus Professor of Human Geography, University of Wales. John Aitchison is an award winning statistician who has been an Honorary Senior Research Fellow in the Department of Statistics at the University of Glasgow since 1995.