If you're not familiar with it you can read about it by following the link at the upper right of this page.
Absence is available at Amazon, Barnes and Noble, Berean, BAM, Lifeway, and my favorite bookstore, Hearts and Minds.
Books aren't a gift appreciated by everyone, of course. A lot of people, unfortunately, don't read, and if they do they sometimes shy from reading anything that might be a little demanding, but if you know someone who enjoys books and who's not averse to having a little metaphysics mixed in with their drama (or vice versa), you could do a lot worse than putting a copy of Absence in their hands.
Aside from making a good gift for a thoughtful graduate or mom, In the Absence of God would also make a fine selection for book clubs, reading groups, or youth groups. Here's what one reader said about it:
Thanks for telling me about your book, In the Absence of God. I bought it last Tuesday for my Kindle and finished it in two evenings, although the last evening lasted until 3:05 a.m.. I could not put it down. Thought provoking, good story lines and characters, entertaining reading, and very educational. Absolutely loved the book and have been talking about it to my kids, family and friends.