This is one of my all time favorite reference books. It is written by Christiane Northrup, M.D. It has just been newly updated & revised in paperback.
Open this book at any page & you will be sure to find some valuable piece of information about how to take care of yourself as a woman. What I love about this book is that Dr. Northrup holistically addresses the mind body connection when it comes to women's emotional issues & their physical health. As you read this book you will find multiple resources & tools that you can use to empower yourself by taking positive steps in healing your body, mind & spirit.
If you have the time she will also be on Oprah January 17th, 2008. Check her out.