Sir Martin Sorrell - Co-Founder, WPP - Part 2

(www.abndigital.com) This week on Captains of Industry we speak to the man at the helm of world's largest communications services group, Sir Martin Sorrell co-founded WPP back in 1985. A graduate of both Harvard and Cambridge University, Sorrell's company employs over 153,000 people in 107 countries around the world.