Instruct: Classify a review as either positive or negative.
Query: Positional Chess Explained Concretely

Where other authors give vague "rules," Stean makes positional chess specific. He gives you a nice bag of non-tactical tricks, and explains how and why each one works. Most of the examples are whole games, which is nice. And the annotations on the games were more helpful to me than annotations usually are.This is one of about four chess books that have ever helped me improve,* out of dozens I've tried. I'm already reading it for the second time, and I've only had it a few months.Finally, yeah, in a handful of places out of 160 pages a few words have been mangled. Probably by some hurried person with a grammar checker--I betcha the 1978 edition doesn't have this problem. It doesn't hurt the book. Really. (Though it must hurt the author some.)*I'm an average player, rated about 1550 online at FICS. The other books that have helped me were Logical Chess by Chernev, The Art of the Checkmate by Renaud and Kahn, and Predator at the Chessboard by Farnsworth.