Dan Roam is the author of the international bestseller The Back of the Napkin, the most popular visual-thinking business book of all time. Fast Company, BusinessWeek, and The Times of London all named The Back of the Napkin the #1 creativity and innovation book of the year. Dan is the founder and president of Digital Roam Inc., a management-consulting firm that uses visual thinking to solve complex problems for such clients as Google, Boeing, eBay, Microsoft, Wal-Mart, Wells Fargo, the U.S. Navy, and the United States Senate. Roam and his whiteboard have appeared on CNN, MSNBC, ABC News, Fox News, NPR, and at the White House. He lives in San Francisco.