Recommended reading materials to improve relationships. These books are recommended as they are written by top experts in the field of relationship therapy:
The 5 Love Languages: The Secret to Love that Lasts - Dr. Gary Chapman
The Seven Principles for Making Marriage Work - John M. Gottman, Ph.D
Hold Me Tight: Seven Conversations for a Lifetime of Love - Dr Sue Johnson
Getting the Love You Want - Harville Hendrix
The Relationship Cure - John M. Gottman, Ph.D