Chess Openings Systems

Hays Pub

Opening Systems for Competitive Chess Players    

Stratigen.com

Chess Openings : London System: 20 instructive games featuring Capablanca, Lasker, Nimzowitsch et al. (English Edition)

Everyman Chess

Opening Repertoire: The Jobava London System    

New in Chess

The Agile London System: A Solid but Dynamic Chess Opening Choice for White

Gambit Publications

Win with the London System                      

New in Chess

The Hippopotamus Defence: A Deceptively Dangerous Universal Chess Opening System for Black

Everyman Chess

Opening Repertoire: The Fianchetto System: Weapons for White Against the King's Indian and Grünfeld

New in Chess

Beating the Hedgehog System: Using a Space Advantage in the Chess Opening

The Chess Opening for You: A Complete System for White and Black

Gambit Publications

An Explosive Chess Opening Repertoire for Black (English Edition)