Positive Outlook for Advertising Industry

Tuesday, 18 May 2010 | 7:40 PM ET

WPP, the world's top ad-firm by sales, is seeing signs of a recovery after months of declines. Martin Sorrell, chief executive of WPP, speaks with CNBC's Saijal Patel about the opportunities and challenges in China's 1.3 billion consumer market and the impact of the digital age on traditional advertising.