10 books • 5 series
Dangerous Weapons: The Ruy Lopez
Flank Openings (Dangerous Weapons)
The Dynamic English
Easy Guide to the Najdorf (Easy Guide)
The French Advance (Chess Press Opening Guides)
101 Tips to Improve Your Chess
Latvian Gambit (Batsford Chess Library)
New Ideas in the Nimzo-Indian Defence (Batsford Chess Library)
Winning with the Philidor (Openings)
Winning Endgames