A new book about parenting from the prolific author of Men Are From Mars, Women Are From Venus John Gray's Men Are From Mars, Women Are From Venus is a history-making bestseller with more than 7 million copies in print in hardcover. This new book on parenting will round out the relationship mega-brand that John has created. Focusing on children ages 1-9, John explains that this is the period of dependence in a child's life when character and sense of self are shaped. Parents everywhere are sure to breathe a sigh of relief that they now have a John Gray book they can turn to help children reach their fullest potential.