Treehouse Comix Inc. is the name of the brand of the comic books that George and Harold make and also sell at school for 25 cents. It is called that way because those comics are made in a treehouse. The first comic series that they made is Dog Man", followed by "Timmy the Talking Toilet". Another typical comic strip they made is "the Amazing Cow Lady". Their comic series with the most pages per comic book can be found in our universe and is called "The Adventures of Super Diaper Baby".