Men Are from Mars, Women Are from Venus: Get Seriously Involved With The Classic Guide To Surviving The Opposite Sex? written by John Gray. ?You can't Live with Them, You can't Live without Them? is a true saying. The book helps the men to understand the inner working of a woman and vice versa. The emotions and expressions of men and women are different from each other. The book explains the reactions of women when she is in problem and on the other hand, how or why men suppress their emotions. The book says number of things that can help in making a relationship healthy. If you are finding problems in your relationship, reading the book can help you in learning about the opposite sex. It offers advice on how to read emotions, when to be concerned and when to let time do the healing.