Spignesi is probably the biggest King fan out there. He knows every book, novella, short story and essay the man has written in and out. There isn't one work he isn't totally familiar with. I actually wonder if he knows more about King's writing than King does himself.
In The Essential Stephen King, Spignesi tries to rank the 101 best things king has ever written. And although every major King work is featured (all of the novels are there, so are the novellas), many of King's best short stories didn't make the cut (where are The Night Flyer and Lawnmower Man?). And I was disappointed when I saw some of my favorite King novels ranked so high up the list (Dolores Claiborne, The Dark Half, Needful Things and Storm Of the Century aren't even near the top 10!). Of course, this is a fan ranking his favourite works. No two fans will think alike.
The reason the book is so powerful is because of the author's writing skills. Spignesi writes with passion and dedication. Every sentence is like a love confession for the King of horror. And I also enjoyed the articles written by King fans/experts at the end of the book. This books makes you want to revisit King's best writings. It's a book every King fan will enjoy and will use time and time again as a reference manual.