Titan Books has given The Sci-Fi Block two -- count 'em, 2 -- copies of their new Firefly companion book, Firefly: Still Flying, which features not only behind-the-scenes stories, prop information, character photos, episode storyboard art, and ship concept designs, but also three Firefly short stories (you can read our full review of the book here). The book hits stores Tuesday, May 25, and will likely stand as the definitive Firefly companion.

If you want this (you know you do), all you have to do is leave a message in the comments section below, saying, "I want it." Or you can say, "I WANT IT!" Heck, you can say anything and we'll count you as eligible. Just make sure you leave your email in the email address box (we're the only ones that can see it -- and we'll never spam you or anything). Alternately, if you have a Twitter account, you can retweet our tweet about the giveaway to become eligible (our tweet can be found here). Two winners will be chosen randomly at the end of the day Tuesday, and we'll send you the book for free.

The only two rules are (1) You have to live in the U.S., and (2) winners have to respond to us within 48 hours of us contacting them, or else the book goes to someone else.

Sound good? Great. Get commenting.