Full color, and about the size of a trade paperback. As you can tell, it's a blown-up version of the final cover (which will be in hardcover).
To celebrate four months until the book comes out I'm giving away a free ARC, signed by yours truly, via Goodreads. Follow this link to Goodreads and enter to win!
The giveaway is going on until next Wednesday (the 19th) and is only available in the US.