I have no idea about authenticity, so I'm pleased to read the other reviews, but this book is extremely well-written, with lovely illustrations of every dish. It includes everything you might need to know if you are not very familiar with South Indian cookery: a glossary, a description of how dishes are Usually combined; A set of recommended combinations. I bought this as my daughter has turned vegetarian and I wanted some interesting, nutritious dishes, and this Satisfies every requirement. It looks so attractive That you are happy to flick through and come across new ideas, and the dishes I've made so far have come out as described, and tasted delicious. Looks like the whole family will be eating vegetarian as I'll be trying out many more dishes.