The point of the book is to report the results of an experiment regarding how cheap wines stack up against more expensive bottles when the labels are obscured with a brown bag. What they found was that you can drink some really great wines and not spend a heck of a lot of money in the process. Check out the book itself for details, including the experimental design.
Of special interest, however, are the rankings of the many wines they included in the trials. It is within those lists (and more detailed descriptions of favorites) that you will find your possible shopping list of wines.
They've steered me right thus far. I'm someone not looking to become a wine expert, nor spend a ton of money. I just want a nice glass of wine now and again. This book is exactly what I wanted, and I thank Sara for digging it up. Are you looking for affordable imbibing? Then I recommend this book. Christmas shoppers, take note.