Whether you are a skeptic or full of loving trust, this book offers the basics of iridology plus some useful diet, cleansings, massage, and habits for living. Fun book to analyze yourself or others in a fairly simplistic way. There are other books that are more for the serious student of iridoldgy--Look to Bernard Jensen if you like...I my self am fascinated with the concept and history, not sure I really "buy" it, beautiful full-color pictures, too!