Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Glad I bought it!

This book is a good introduction to Iridology. It gives a good breakdown of what Iridology is and includes the Iridology chart for both eyes along with photos of human irises for references. My only complaint: I wish there were more human iris photos in each section. But I'm only through the first few chapters, and I already know the basics of Iridology and how to read parts of the Iris for certain conditions. If your interested in Iridology this is a good starter book.Zac-