Best Coffee Book

I'm looking for a solid coffee primer that provides basic background on roasts, types of beans, methods
of decaffeination, flavor elements, etc. Based on a cruise through Amazon, I'm leaning toward Corby
Kummer's "The Joy of Coffee."

Any opinions from knowledgeable individuals out there?

Corby's book is pretty solid--most of
the other references on the market are
essentially coffee table books (oops),
though I am partial to the lavishly
illustrated one Illy put out a few
years ago.