This is a great book, set up with information that comes up as you need it. Great format. I made lots of notes, and learned so much. This book was instrumental in figuring out that my husband is a type 1 1/2 Diabetic, not a type 2. It's not common and I wouldn't have known which tests to ask for or how to interpret the results. After that, I passed the book on to a friend who was diagnosed with Type 2. Great resource.