Tales of the Cthulhu Mythos by Lovecraft (1998, Paperback, Reprint)

Only two of the stories in this collection are by Lovecraft: "The Call of Cthulhu" and "The Haunter of the Dark". Other authors making additions to the mythos include Clark Ashton Smith, Robert E. Howard, August Derleth, Robert Bloch, Henry Kuttner, Fritz Leiber, Brian Lumley, Philip Jose Farmer, and many others! If you are like me, you just pooped a little. There is so much awesomeness here it blows one away. I'll mention a couple of my favorites: Frank Belknap Long's "The Space-Eaters" (beware of squishy things dropping on you while in the woods), and Fritz Leiber's "The Terror from the Depths". Needless to say should you be in the woods and come upon an abandoned town with an empty and ruined church which behind it's pulpit has a grand golden crucifix turned up-side-down, do not go read the book on the pulpit entitled "De Vermis Mysteriis"!