I have a chess library that contains several hundred dollars worth of books. And looking at them there are three that I have learned more from than all the rest: MY SYSTEM by Aron Nimzowitsch, IDEAS BEHIND THE CHESS OPENINGS by Reuben Fine, and COLLE SYSTEM by George Koltanowski.
To do justice to this book, and to understand what Nimzowitsch is saying in it, will require a commitment of both time and effort from the reader. Don't pick this book up and expect to polish it off in a weekend 'cause this book is to The Chess World what Chemistry 101 is to Science. An aspiring chess player won't get anywhere without Nimzowitsch's concepts of: overprotection, centralization, open lines, surrender of the center, pawn structure, attacking strategies, defense strategies. Many International Grandmasters admit to cutting their teeth on this book. Nimzowitsch's concepts on middlegame play are the bedrock upon which solid, effective chess skills are made. He instructs the reader on sound opening play and then moves into the middlegame and endgame phases in greater depth than does Fine (see above book). His approach to chess could be called scientific: his analysis of a position by its strong and weak points allows the reader to understand what to strive for and what to plan for when moving the pieces from one square to another. Moves are made for a reason; Nimzowitsch teaches those reasons. This book won't make you a World Champion, but you won't become one without it. This is a must-have book.