The book presents an excellent case study of how solid, peaceful, and advanced society can be when we collectively view the world without acting out the literal word of the books that support organized religion. One major takeaway that surprised me was the contrast and comparison between how the Danes and Swedes viewed religion with a sense of spirituality and culture and the Americans viewed religion with a sense of literal and rigid interpretation and how that translated into our societies differences. I am personally embarrased of how our America thinks and behaves relative to this topic. To a great degree, we can step back and view American Christianity similar to how we view the worship of ancient cultures - Greek, Egyptian, Mayan, Incan, and see how antiquated our thinking is around this subject.
This book was recommended to me through the Sam Harris blog, and I recommend it for anyone that is asking the question, what would society look like if we walked away from the literal interpretation of the Bible? While the book doesn't get into Islam, the same parallels can be drawn and points inferred. It briefly touches Judaism, which is ironically viewed more similarly to the Dane and Swede view of Christianity. Jews are surprisingly secular when viewing social topics.
One last stat that surprised me was how large the secular/free-thinking/humanist population is across the world - 4th largest group (if you had to group this populus against labeled groups of believers and non-believers). Of the 6.8 billion of us currently on our planet, 2 billion are admittedly Christian (Catholic, Episcopal/Anglican, Lutheran,etc), 1.2 are Muslim, 900 million are Hindu, and 750 million are admittedly freethinkers. My instincts tell me that if we count the people that really are freethinkers, but can't yet part with their religious label, the number is much higher.
At any rate, we seem to be waking up around the globe and viewing religion for what it really is. This book is a good piece for those wondering how moral, peaceful, economically solid, and culturally advanced we can be if we let go of the stories from these ancient books and live our lives by our true moral and instinctual compass.