Post-traumatic stress disorder (PTSD) can present with a number of symptoms, including anxiety, depression, flashbacks, and trouble sleeping. If your partner has PTSD, you may want to help, but find yourself at a loss.

The simple truth is that PTSD can be extremely debilitating--not just for the person who has experienced trauma first-hand, but for their partners as well. And while there are many books written for those suffering from PTSD, there are few written for the people who love them. In "Loving Someone with PTSD," renowned trauma expert and author of "I Can't Get Over It ,"...