If I had a kid I would totally festoon his/her room with these covers. There are few things I love (artistically) more than these old monster covers. All Stan Lee or Jack Kirby or Steve Ditko would need was a name and the monster would draw and write themselves. I have an old trade of the best of these that I am proud to say is tattered and worn from overreading. The kids would fight to have it for free book time. And if you want to teach a child to read? Put away your illustrated children's dictionaries and pic up one of these. I know from experience that nothing works better.
