Shade
I'll start with my two, The Lady of the River by Phillippa Gregory and, obviously, The Night Circus by the uber talented Erin Morgenstern.
I just finished read The Night Circus and it was amazing. It has definitely made me want to work more with the Marseille. I had expected Tarot to make a very fleeting appearance in the book but I would say it was quite substantial.
http://www.amazon.com/Night-Circus-...4639/ref=sr_1_1?ie=UTF8&qid=1330322170&sr=8-1