I bought the book because I have to return my library copy. I don't know about you, but the real information you need from the doctor to start basal and bolus injections or pumping insulin is minimal or sketchy at best. There are so many factors influencing just where to start and where to go from there that a physician just can't spend that kind of time with you. Maybe it's very inconvenient or impossible to get to an endocrinologist or to classes. This book will give you the information you need to avoid doing more harm than good! Formulas are there for titrating your bolus/bolus/pump insulin based on weight, based on your personal rate of absorption, what to do when things go wrong, all the what, where, whens and hows you need to know to get your blood sugars under control. There are also plenty of websites mentioned to follow up on any further research. It really is a MUST HAVE book!