Manuals

I've been making a chunk of warcraft gold recently buying a few manuals from vendors and selling them for a big profit in the Auction House. Whay don't people just go to the vendors and buy them themselves? Good question. Ignorance or laziness I guess. These are all on the flight path for Horde or a short journey for Alliance.Old Man Heming in Booty Bay in Stranglethorne has "Expert Fishing -