It is a shame that Robert R. McCammon has stopped publishing his work, and this book is a great example why.
The highlight of the book was the first story, "Yellowjacket Summer." This story starts in a small town. Everything seems hunky dory. A kid who works at a gas station is talking to the owner about baseball...just a good old American day. Then a van arrives, running out of gas, and discover everything in the town is not as normal as it seems.
Another highlight was the Green Falcon story, where a retired actor decides to take care of the bad guys himself by donning his old super-hero uniform. The title story, Blue World, puts us right in the middle of a priest's struggle with his faith manifested in his obsession with a porn star.
All of the stories in this book were enjoyable, but these just stood out for me. In my view, McCammon is second only to Stephen King in the horror field, so if you like short horror fiction, this is definitely the book for your.
Oh, and if you're wondering why McCammon isn't publishing his work anymore, it's because he wanted to branch out into other genres (namely, into mainstream fiction) but his publishers put constant pressure on him to write horror.