Interview with the author if you're interested:
http://www.ifanboy.com/podcasts/audi...Man__and_more_
Starts talking about the book about 23 min. Before that is how he got into the industry and his work on Deadpool.
Explains the ears, and the inspiration for the characters and story.
His recent Spider-man stuff has been awesome. The interview is from June so they don't talk about it but he did a recent 2 issue Spider-man story on the Rhino. If you thought I Kill Giants was sad... #617 and #625