Tolkiens Drawings

[Elendur]

Isn't there a book out that has drawings made by Tolkien? I am thinking of making a map for a game I play, and I need detailed specs of an area (like Isengard) to make the map with. I am almost certain the book exists, but will it have drawings like I need?

And, Im am also interested in the pictures because of the books. [img]smilies/smile.gif[/img]