Instruct: Classify a given Amazon review as either positive or negative.
Query: Lost Classics Found

The classic texts would be difficult for beginning tai chi students to understand, however,this book is an excellent choice for experienced students of tai chi. Texts of tai chi classics supplemented with the author's analysis of the signficance of the text and a detailed history of tai chi make this a book I will go back to over and over as my tai chi practice deepens.