My son would think this was HILARIOUS! Anything having to do with butts o=cracks him up LOL You gotta love 4 year olds! Would it be ok to show to a small child?
well, there are funny pictures with thought bubbles over the animals' heads. occasionally the words ass is used. the humor is a little more adult based, but thats about the worst of it, but if he cant read he'll probably enjoy all the pictures of the animal butts more.