A lot of people have called William Shurtleff's "The Book of Miso" the definitive book. Sadly, however, it appears to be out of print. Not hard to get, of course, but not for cheap if you want a new hardcover copy. Plus, it appears like it hasn't been updated since 2004.
So my question is this... is there a new Miso bible, perhaps one updated/published more recently? Or if "The Book of Miso" is so definitive that it simply doesn't need an update, where can I find a new hardcover copy for a price I can actually afford?