DR. DAVID LEWIS is a Chartered Psychologist and co-founder and Director of Research at independent research consultancy Mindlab International. The author of over 30 books, including The Soul of the New Consumer (also published by Nicholas Brealey Publishing) and Impulse, David has been dubbed the father of neuromarketing for his pioneering studies on analyzing brain activity for research and commercial purposes. www.thebrainsell.co.uk