A classic.
The animated film of this story was a staple of my childhood. I loved it, and was terrified of it, and I don't know why I've never read the original book until now!
I read a graphic novel variation recently which was also quite good, but I'm so glad that the novel itself lived up to my expectations.

Yet another beautifully written story from Gaiman.

This book would be perfect to use as an example of 'scary story' writing in classes, as well as for a variety of literary techniques, and how to build tension.

It would be great as a tool to help older primary school children who aren't exactly enamoured with reading to get them engaged into a fast paced, relatively short story that has plenty of variations in different media's to help immerse them better. And from this also, for any children to experience how different medias can tell the same story.