Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent way to learn hiragana and katakana

Primarily, this book teaches the proper way to write hiragana and katakana. It excels at this because it gets you to practice, practice, practice and practice some more. Personally, I made photocopies of all the practice pages so I could more easily practice.Secondarily, it covers basic pronunciation, reading, and writing sentances. Just the basics, concepts are explained simply and it provides a good platform for further study. I'm certain the authors intended readers to study other books for these skills.Its one minor drawback is not including info on why machine-made characters sometimes look significantly different than hand-written characters.