Today only, Barnes and Noble has The Meaning of Marriage by Timothy Keller on its Daily Find for only $2.99. Keller and his wife, Kathy, collaborated on this book to show readers what the Bible says about marriage. Timothy Keller is a pastor in New York and has written other books that ended up on the New York Times Bestsellers list. Be sure to get the book before the price goes back up. If the price on the Barnes and Noble site are different from this blog, you will be charged the price on bn.com.