I've been on an interesting reading kick for the last week or so (I didn't realize the theme until I wrote this post). Three books with some reference to both thieves and the mythos and culture of the ancient Mediterranean region.
Just read: The Queen of Attolia by Megan Whalen Turner. AMAZING book. Better than the first in the series. Mind-bending drama. Clever storytelling. Unforgettable characters. I couldn't recommend this more.
Reading now: Lightning Thief by Rick Riordan.
On deck: Shadow Thieves by Anne Ursu.