John Winsor was recently in New York for advertising week, during which time he and Alex Bogusky hosted a party for the launch of their co-authored book 'Baked In: Creating Products and Businesses That Market Themselves'. Today we're told Winsor is leaving the agency, just weeks following the book getting published.

Winsor, who has been Crispin Porter + Bogusky's VP/Executive Director, Strategy and Product Innovation since 2007 when he sold his 11 year-old company Radar Communications to CP+B, was not available for comment. But a source tells us the author is leaving the agency.

A representative from CP+B did not immediately respond to a request for comment informs us that he is in fact leaving.

Winsor is no stranger to the buy-and-sell process. Prior to creating Radar — a market research consultancy, Winsor bought then fledgling "Women's Sports & Fitness" magazine. He would later sell this and a number of other sports-centered titles to Conde Nast.

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