No subject escaped Dad's attention. He had his own style of humor. It really is strange that I don't recall ever hearing him tell a joke! This cartoon is a perfect example of my father's interest in creating depth perception. I remember a conversation with him about how important it is. Funny, but while my friends were learning how to camp, fish and hunt from their fathers I was learning about creating images from mine. (At the time, of course, I would rather have been camping, fishing and hunting.)