Instruct: Classify the given review into positive or negative sentiment.
Query: The most complete book about Natural Family Planning.

I read the 4th edition of Natural Family Planning and enjoyed every word I read. I have always practiced natural family planning, but this was the most extensive and well written book on the subject that I have read. Using my natural fertility signs I have been able to get pregnant three times without any intervention. This book will appeal to you if you are looking for more than natural family family as well. It inlcudes chapters on breastfeeding, natural child spacing, scriptures from the Bible, health and nutrition, menopause, pregnancy and marital relationships. The method is Biblically based and is written by two authors who have practiced this method. This book really opens your eyes to what the other Doctor's and experts fail to tell you. I highly recommend reading the Natural Family Planning book even if you haven't even gotten married yet!