Luke Johnson on The Magic of Thinking Big

Serial entrepreneur Luke Johnson celebrates the simple but powerful messages of the self-help classic, "The Magic of Thinking Big" by David J Schwartz." "His book is not great literature," he admits. "Indeed, it is popular psychology at its most obvious." However, Johnson defends its power as "basic but also profound" - and it has influenced his huge success with a series of household name businesses. Producer: Smita Patel.