[npc]

You may want to define the year to determine which books are eligible. Two reasonable ways would be to go by the copyright year or the date of release as listed at Amazon.com. I would expect these two sets to have a lot of common members, but to not be equivalent.

I'll suggest the following additional nominations:
Dalla and Alston, "One of a Kind"
Grotenstein and Reback, "All In"
Gordon, "Phil Gordon's Little Green Book"
Yao, "Weighing the Odds in Hold'em Poker"
Moneymaker, "Moneymaker"