It boils John Gray's Mars and Venus down into a small hardback handbook but it really concentrates on how we communicate with each other. Marriage Work - by John Mordechai Gottman and Nan Silver. Backed up by years of research, this book is also challenging reading. The concepts contradict many of the traditional ideas, however, they make a lot of sense and have great exercises for building relationships and overcoming issues. The Millionaire Next Door - by Thomas Stanley and William Danko.
Money is one of the five major stressers in a relationship.
It is important that you and your partner have compatible financial goals and consumption habits. I find this book especially important to offspring of affluent parents because they, ironically, are less motivated to succeed and excel than those of less affluent parents. The Coffeehouse Investor - by Bill Schultheis. Another simple and easy guide to investing. It provides solid investing principles that weather the ups and downs of the market.