This book is a collection of shorter works that Gorey had done over the years – if you like his work (which is slightly macabre, and definitely all kinds of wrong), it’s worth a read.
There are a couple different alphabet stories that are completely not meant for children, but are so much fun to read as if they are. That pretty much sets the tone for the other works in the book. The nice thing is they’re all rather short, so you could use this as a good intro to Gorey’s work.