At its time it was written it was a good new apprach to understands the relations of man and woman in a marriage relationship. zThe Mace's added a lot to the dynamics of loving relationship. The helped couples assertain their growing difficulties not as thing that told them to split and go their separate ways, btu to see their symptons as something that need work. Identify the need beneath the surface for real work on the marriage. A very good read and study.