Superhero Joe by Jacqueline Preiss Wietzman, illustrated by Ron Barrett is about five year-old Joey and how he uses his super powers to save his parents when they get into some sticky situations. The illustrations are rendered in ink and colored digitally. The illustrator, Ron Barret, of "Cloudy with a Chance of Meatballs" fame, has a great website. He's been around awhile and has done children's and adult items.
The author has done two other books: You Can't Take a Balloon into the Metropolitan Museum and You Can't Take a Balloon into the Museum of Fine Art.
I like how I like how the pictures show lots of details and that the 'life in peril' incidents are really every day problems, but Joey feels like he is saving the day!