This item can and will make you thousands of gold. It's very heavily in demand and can be bought out for absurdly cheap prices, because people don't know the true value for this item. It's been around for almost three years and now the demand for this item is higher than ever, especially since the supply is very, very low. One person will need roughly 60 of this item to stop needing said item, and people are willing to pay absurdly high prices for said item, as it will yield them thousands of gold over the span of several weeks.
What could I be talking about? Is it profession related? Or is it just a vanity item? Why do you need 200 of them? What the hell is it, Mageshadow?
Books of glyph mastery. You read correctly, these books are literally gold mines. They're very scarce in supply but their demand is insane. Scribes need 57 of these books to completely fill their profession book with every single glyph that's currently in game.
I've had this item on my snatch list for months, 3 months before Cataclysm to be exact, I managed to snag roughly 150 before cataclysm, and I've been steadily selling them off at 600-700g per book. It's made me thousands upon thousands of gold.
My suggestion would be to add this book to your The Undermine Journal notification list as well as your auctioneer/auctionator snatch list and buy them when they're below 2-300g, then flip them. You could also control this market very easily as the supply is extremely short, due to the lack of people playing wrath content; with the exception of levelers simply leveling through the zones.