The 5 Love Languages: The Secret to Love that Lasts Paperback $7.02 + Free Shipping With Amazon Prime or $25 Order. Lowest price it's ever been. Full 5 star rating on Amazon with over 10,000 reviews. This is a very popular relationship book. Falling in love is easy. Staying in love—that’s the challenge. How can you keep your relationship fresh and growing amid the demands, conflicts, and just plain boredom of everyday life? In the #1 New York Times bestseller you’ll discover the secret that has transformed millions of relationships worldwide. Whether your relationship is flourishing or failing, Dr. Gary Chapman’s proven approach to showing and receiving love will help you experience deeper and richer levels of intimacy with your partner.