The cover of 'The Haunted Pumpkin of Sleepy Hollow' features a black horse with a glowing pumpkin on its back, galloping through a spooky graveyard at night. The horse is in the foreground, with a ghostly figure riding it. In the background, there are two children, one of whom is holding a flashlight, and a full moon illuminating the scene. The title of the book is prominently displayed at the top, with the tagline 'All New Animated Feature!' below it.