Dr Paul Martin studied biology at the University of Cambridge, graduating in natural sciences and with a PhD in behavioural biology, and was a Harkness Fellow in the Department of Psychiatry and Behavioral Sciences at Stanford University. He subsequently lectured and researched in behavioural biology at the University of Cambridge and was a Fellow of Wolfson College. He co-authored the first three editions of Measuring Behaviour with Patrick Bateson, and is the author or co-author of several other books including Design for a Life (2000), Counting Sheep (2002) and Play, Playfulness, Creativity and Innovation (2013).