James R. Hurford is Emeritus Professor of General Linguistics, University of Edinburgh. He is co-editor, with Kathleen Gibson, of OUP's Studies in Language Evolution, co-founder, with Simon Kirby, of the Language Evolution and Computation Research Unit at the University of Edinburgh, and co-founder, with Chris Knight, of the EVOLANG series of international conferences on the evolution of language. His books include The Linguistic Theory of Numerals (CUP, 1975), Language and Number: The Emergence of a Cognitive System (Blackwell, 1987), Grammar: A Student's Guide (CUP 1994), and The Origins of Meaning (OUP 2007).