Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good book to study before studying Teach Yourself Hindi

I bought this book simply because Amazon said that many people who bought Teach Yourself Hindi bought this book. I think this recommendation was quite reasonable. When I opend the Lesson 1 of Teach Yourself Hindi, the skit was written in Devanagari. Teach Yourself Hindi also has some pages about the Devanagari Script, but I don't think that's enough. So, I opened this Teach Yourself Beginner's Hindi Script and studied the script first. The book explains strokes and shows plenty of examples of hand written scripts. Those were quite useful. Now I am comfortablly studying the skits in Teach Yourself Hindi. I recommend studyging Teach Yourself Beginner's Hindi Script first.