There was a older book called TRAVELS WITH ELVIS (also called ROADSIDE ELVIS) that covered the same ground. THE FIELD GUIDE... is decently priced, has original photos and maps, and is obviously very up-to-date. Overall, the book doesn't seem to have much personality -- it is literally a guide. I can't speak for any section other than the California one, but that section doesn't really offer any terrific new "shrines" but covers the same old information - the house where Elvis met the Beatles, Parmount, Fox, Pan Pacific, etc.