Riding High On A YO K2TOG

So I finally learned the concept of the YO. What this means is that in the last five years I have increased my knitting skills from K only, to include P, P2TOG, K2TOG, and YO. Who knows what's next? Cables?! In any case, I'm a book person (hey, had you guessed that yet?) and as such would like to pick up a knitting companion. My question to you is if you were only going to own one book on knitting--no patterns, just stitches, etc--which book would you pick to be your definitive knitting resource?