Because each story is by a different author, they vary widely, but are all scary enough to send a chill down the readers' spines but not keep them awake at night! There are monsters, ghosts, and the usual spooky characters as well as some more technologically based frights.
Since one story is never enough, it's great that this is a fairly long book with 20 stories. There are brief descriptions of the mystery writers at the back of the book, which is a great resource for readers who want to hunt down further chilling tales by whomever wrote the story that scared them the most!
Personally, I think there is an entire novel to be written involving a creepy ice cream truck!