Here's some fun Halloween Picture books:
Frank Was a Monster Who Wanted to Dance by Keith Graves
Man can he dance!
Halloween Pie by Micheal Tunnell
What's not to love about saying "Give Me Some Pie" in all kinds of different ghoulish voices? I have to say the illustrations in this book aren't my favorite, but it's just so much fun to read.
The Little Old Woman Who Wasn't Afraid of Anything by Linda Williams and Megan Lloyd What's spooky about a scare crow? Just noise.