Yesterday's Super Bowl commercials are plastered all over the Internet today, including in this great round-up from Slate. Author Seth Stevenson mentions Donald Gunn's 12 standard advertising formats. This video, made in 2007, features the author himself going over the 12 formats. If you've never thought about how simple the infrastructure is for these bite-sized pieces of media -- or if you're trying to find meaning in Super Bowl ads beyond the apparent conclusion that Americans care only about cars, beer, and Doritos -- look no further for your crash course.