This book has a chapter for irresponsible spouses, alcoholic spouses, abusive spouses, sex addicts, etc. If your marriage has one of these problems, you are going to need a whole lot more than one chapter of pop psychology to fix it. Save your money.
This book is for couples at the end of their rope, but I believe these principles could be used in ANY marriage. It addresses some heavy subjects - abuse, depression, addiction, etc., but in a way that gives hope. It is very easy to read, and includes stories from real couples in crisis. I HIGHLY recommend it.