Little Witch's Big Night, an early reader
Corduroy's Halloween, a lift-the-flap picture book
Too Many Pumpkins, a picture book in which pumpkins lead to community
The Runaway Pumpkin, picture-book goofiness
There Was an Old Lady Who Swallowed a Bat, more of the above
The Hallo-wiener, in which a dachshund saves the day
Space Witch, from the creator of Corduroy (out of print)
"Derry Halloween" photograph from Wikimedia Commons.