This updated and expanded edition expands some of the subjects that were discreetly touched on in the earlier edition, explores how the latest discoveries in the field of medicine and social practice confirm the principles taught in the book.

With over 2.5 million copies sold since its release in 1976, The Act of Marriage has helped Christian couples around the world discover new joy and sexual fulfillment in marriage. This new edition expands on topics previously only touched on and includes updates on the latest findings in medicine and social science. It offers biblical principles, goals, guidelines, and charts to help couples enrich their physical relationship.