My blogging buddy Polycarp is giving away a copy of Signs and Mysteries: Revealing Ancient Christian Symbols by Mike Aquilina. It looks like a fascinating read. To enter, simply comment on the original post for one entry, or write a post about the giveaway for two additional entries.
The one atypical catch is you have to write a review about the book if you win. There don't appear to be any special rules about the review (re length, etc.) however. And if you don't have a blog, you can post your review on his blog.
The date and time for the drawing are sometime next weekend. Good luck.