Did Harold and the Purple Crayon blow your mind as a kid?
Voted no because I don't remember learning of Harold till I was about 41 or 42 years old and because in my youth I was a human, not a goat, so I was never a kid.
Nevertheless, I do have a soft spot for Harold and the Purple Crayon because a production company showed up at my university when my son was about 4 or 5 years old and staged a Harold play and my son loved it. It was well done and actually inspired us to borrow Harold from the local library (which I think was the point). It turned out to be a good book. Best of all, the production was one of those family shows promoting reading so we all got free tickets for ourselves and our dependents and the show cost nothing.
In short, I'm a big Harold fan, but not having discovered it in my youth, and not being an ungulate, I have to vote no in your poll. I'm sure you understand.