If you are looking for marriage books let me recommend His Needs, Her Needsand Love Busters. His Needs, Her Needsdoes a very job of covering what couples should be doing to foster a good relationship. It is somewhat controversial in that the author calls for women to work to maintain their appearance. He does not mention this for the man side which I definitely would. While I don’t think women are as into appearance as much as men I think it is still very important. Love Busters covers the things we do that destroys love in a relationship. If you work through these books with the workbooks it can really help a marriage. What I find lacking in them is I think they are somewhat superficial and don’t reach to the core of issues. I think they are very good books nevertheless.