Written and illustrated by Martin Handford, the "Waldo" books have sold more than 50 million copies worldwide. The books contain complex, full-page illustrations of large crowd scenes in which the main character is somewhere hidden, dressed in a red-and-white shirt, a hat, glasses and a walking stick....says THIS ARTICLE in Variety. I Googled WHERE'S WALDO? and found an image representing a page from the book series. The picture below (which originates HERE) is embiggenable.