I highly recommend "The Act of Marriage" by Dr. Tim and Beverly LaHaye. Whether you're engaged or have been married 10 or 30 years, this book is a good read. One of my great friends gave this book to me at a bridal shower, and I really enjoyed and appreciated it. I found the book was in line with my own personal beliefs about intimacy and marriage. The couple approached intimacy very tactfully, yet straight to the point. You can find it at Borders, other large book stores or online at amazon.com.