I spent the last few months wrestling with a "women's health issue" of my own and this book was invaluable! I was able to research the possible things that might be causing my problem so that I had intelligent questions to discuss with my physician. I was then able to refer back to the book with the information he gave me. The diagrams are useful, the language concise, and each entry refers you to related entries in the book. Need a reference when you're healthy and want more info? This book is great. Need a reference when something is going wrong? This book is EVEN BETTER--find out what tests/procedures your doctor might use, the rationale for particular choices, what to expect during the test/exam, and gain insights for what the results mean. The New Harvard Guide can make a very scary situation much more manageable(knowledge is power!).