Lil,
Honestly, what is yet another book going to do? If Karen is anything like me, she's booked out. She knows what the books say etc, but it does no good without your partner being on board too. I'm sure K's H is no more interested in reading the books than MrsGGB is. Heck, even the ones MrsGGB bought on my suggestion never got opened.

I'm coming to the conclusion that one person cannot fix a relationship alone. You can do everything to make it easier for your partner to get on board, but if the partner refuses to step up with you you'll wind up spinning your wheels and getting absolutely nowhere...well, that's not exactly true. You can do a lot to improve yourself, which MIGHT get your partner motivated in a Snarchian way, but there is no guarantees.