Nick de Firmian

Modern Chess Openings

Modern Chess Openings also called MCO was first published in 1911. It is regarded as the first serious chess book that scientifically studies the opening.

Etiquettes: Queens Gambit

The Modern Chess Opening (MCO) book was originally published in 1911 by Richard Clewin Griffith and John Herbert White. Since then the MCO has gone though 15 editions. The latest edition was revised by Nick de Firmian.