Just finished a fabulous book, "Word Freak" by Stefan Fatsis. It's ostensibly about the world of competitive Scrabble, but becomes more interesting than that since it's really about his own descent into obsession. Being obsessed with obsessives, it definitely worked for me.

It also made me want to get a Scrabble board and get immersed. Don't think I would ever be able to play KNURS or have a chance at even seeing LIAISES, but now the idea of learning the strategy of the game is intriguing. And being comfortable with some odd words, like QAT, are fully within the realm of possibility.