In the meantime, here’s an interesting article about “Internet Marketing Basics” and “Search Engine Optimization” using Waldo for examples:
http://mymedialabs.com/2012/07/02/internet-marketing-basics-lessons-in-seo-from-wheres-waldo/
Excerpt: Where’s Waldo had page after page of crowded pictures, huge, epic scenes with lots of action, all intended to hide a single, red and white stripped character: Waldo. I spent hours scanning those pages, trying to figure out the puzzle and find Waldo faster. Little did I know that twenty-five years later I would use the lessons from Where’s Waldo to better understand SEO.The Waldo books worked by hiding Waldo in big tableus and forcing you to find him. Similarly, by virtue of its sheer size, the Internet hides your website: visitors either have to know the link to your site or find it by searching.