I purchased the 17-Day Diet book last fall, only because it had a bright pink cover. I'm so glad I did, b/c I followed the diet for two cycles and immediately lost over 25 lbs! Now, I'm back on it - day #2. I need to get this body into goddess-hotness for my wedding in August. I totally know this book works - I didn't even exercise for a week or so (I go on 40 min. walks or go on the treadmill for 40 min at a 10 incline), and the weight came off easily! Buy it if you want to "diet" - there are so many recipes online to help out as well!