My System

My System
My System: 21st Century Edition front cover
AuthorAron Nimzowitsch
Original titleMein System
TranslatorPhilip Hereford
LanguageGerman
SubjectChess theory
Publication date
1925 (1925)
Publication placeGermany
Published in English
1929 (1929)
ISBN0-7134-5655-8 1987 reprint

My System (German: Mein System) is a book on chess theory written by Aron Nimzowitsch. Originally published as a series of five brochures from 1925 to 1927, the book introduced many new concepts to followers of the modern school of thought. It was one of the early works on hypermodernism, a school of thought which challenged the classical principles commonplace at the time.

It is generally considered to be one of the most important books in the history of chess.