I got a copy of Just Food: Where Locavores Get It Wrong and How We Can Truly Eat Responsibly by James McWilliams for my birthday, I finished it pretty quickly and have been meaning to post about it as I though it was quite good. Its generally about busting some myths and misconceptions that stand in the way of sustainable agriculture like GMOS=evil, organic&local=good
I know what you thinking, "Oh silly Soymilk" but this isn't another piece of vegan propaganda I'm pushing, the book deals quite honestly with some interesting sustainable animal food production models such as aquaponics (what he calls the "blue revolution") but does end up arguing that we will need to reduce the amount of meat consumed (calls it the "new caviar") and the author did end up going vegan himself during the writing process
It also deals with of course localvores and "food miles" vs. LCAs (life-cycle assessment), the organic craze, a positive case for GMOs, and food and trade subsidies as they relate to sustainable agriculture.
I highly recommend this book.