Title: Men Are from Mars, Women Are from Venus: The Classic Guide to Understanding the Opposite Sex, Author: John Gray
Title: Mars and Venus in the Bedroom: A Guide to Lasting Romance and Passion, Author: John Gray
Title: Getting to Yes: Negotiating Agreement Without Giving In, Author: Roger Fisher
Title: Getting the Love You Want Workbook: The New Couples' Study Guide, Author: Harville Hendrix