Question: how to have a healthy relationship book?
Answer: Deeper Dating: How To Drop The Games Of Seduction And Discover The Power Of Intimacy by Ken Page. ... 
The Mastery Of Love: A Practical Guide To The Art Of Relationship by Don Miguel Ruiz. ... 
The Six Pillars Of Self Esteem by Nathaniel Branden. ... 
The Seven Principles For Making Marriage Work by John Gottman and Nan Silver.