Personally, I've never read any of his books. Only today that I realized that The Grinch and Horton the Elephant are characters from his books. I guess with the launch of the new movie 'The Lorax' (what the hell is that??) and his recent birthday, March 2, that I begin to get the "Seuss" awareness.
But I'd like to share this image I found here with his famous quotes, which are really fun to say. They're like tongue twisters!
And check out his official website, Seussville. It's like a fantasy playland, where everything's waving and playing merrily.
Source: www.mamiverse.com