We originally borrowed this book from the library. My 5 year-old would not put it down and after many renewals, we purchased it. The author, Jay Stephens, has some heroes with their own story lines, which my son loves. The author does a great job of explaining the many drawing options for every aspect of the heroes; face structure, features, costumes, powers, etc., and what they all exude. My son has become more aware of the details of cartoons he sees and enjoys drawing his own characters. We also purchased Stephen's robot book, and will give this to my son after he puts the heroes one down!