Ravells, if you haven't started on it yet, please read the other three first ... it is a stand alone book, but it gets a little better by having read the others since a couple of characters show up again... and there is a plot spoiler or two..
That being said - yes, beautiful map indeed - but he only uses it on the cover - why not use it on a spread in the book also so we can enjoy it without swords and coins and blood