Aron Nimzowitsch was the most influential chess thinker of the 20th century. His books My System (1925) and Chess Praxis (1928) had tremendous impact and continue to be printed, sold and read to this day. German chess historian Rudolf Reinhardt compiled, from an immense variety of sources, all the games Nimzowitsch played after 1928. They are presented with notes by Nimzowitsch himself. Reinhardt also collected the articles and essays that Nimzowitsch wrote during the last seven years of his life. Richard Reinhardt did not exaggerate when he called it the unauthorized sequel to the classics Nimzowitsch himself published during his lifetime.