I'm just getting towards the end of a book that I've found fascinating so far. It is "Wine: The 8,000 Year Old Story of the Wine Trade" by Thomas Pellechia. It is about trade and commerce related to wine more than actual winemaking but it has some excellent information and insight to the history of wine. I got mine for $8 shipped from Amazon. I highly recommend it, I haven't been able to put it down in a few days now!