More at http://thebookshelfgargoyle.wordpress.com/2013/06/04/top-ten-tuesday-books-that-feature-travel/
Many years ago now I picked this book up on the appeal of the cover art alone, after a very long book drought. I'm so glad I did, because it has become one of my favourite series of all time.
Before the current wave of books featuring shuffling hordes, Garth Nix created the Old Kingdom with its own peculiar brand of dead-who-won't-stay-dead. This is a thoroughly engaging read that will stick with you after you've put the book down. Best of all, it (and its sequels) are also eminently re-readable.
If that's not enough of a recommendation, I liked this one so much I named our housecat Moggett in homage to the cat-shaped creature who is the Abhorsen's servant and companion. That's how much I liked it.