Nick Cardy's tenure as DC's go-to cover artist was not that long really. But he produced a gaggle of truly memorable images in that time. Here are three Superboy covers feature Kal-El as a wee tot who has not completely developed his heroic worldview. The Superboy as Tarzan cover is a hoot. The one with him holding the bear is hilarious and dangerous at the same time. And the shot of him stopping the car is incredibly dynamic. Cardy's line was full of life and energy. Three great image!