Dr. Seuss Still Rules

Here’s an interesting analysis of the dominance of children’s book sales by Dr. Seuss.

I knew the story about how Green Eggs and Ham started on a bet that he couldn’t write a book using no more than 50 distinct words. But I didn’t realize that Cat in the Hat was based on a challenge to write a book using only the 348 words a first grader should know.

Another example of how constraints can spur creativity.