How many books has Mo Willems Written?

Mo Willems has written a lot of books! It's hard to give an exact number because it depends on what you count as a "book." He has:

* Over 50 picture books: These are the most well-known, featuring characters like Pigeon, Elephant & Piggie, and Knuffle Bunny.

* Several chapter books: He's also written a few chapter books, like the "Don't Let the Pigeon Drive the Bus" series.

* Other works: He's also written plays, screenplays, and even a graphic novel.

So, if you're just counting picture books, it's over 50. But if you include all his writing, it's even more!