Jeff Kinney's delightful Diary of a Wimpy Kid and its sequel, Rodrick Rules, follow young Greg Heffley as he negotiates some familiar worries—bullies, popularity, girls—along with unique obstacles like a nuclear cootie called "the Cheese Touch." The books have resonated with kids and parents alike, and Kinney discussed the surprise phenomenon.

Jeff Kinney shows how to draw the cartoon characters in "Diary of a Wimpy Kid" and makes a statement true in computer science as well as cartooning.