Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The best Aikido book I have ever read.

I first read this book in 1989 when I started studying Aikido. It was more than useful as a beginning student and continued to be useful through my progression into teaching over the years to come. I recently moved across country and wasn't able to pack much. This book was one item I left behind. I am returning to Aikido after a three year recovery from an auto accident and even though I have my original copy in story I am happy to be shopping for a second.One of the most important aspects of Aikido is transcending the techniques and grapsing the underlying theory. This book certainly helps.