12 books • 2 series
Secrets of Chess Transformations
Geheimnisse Des Positionellen Schachs
Secrets of Positional Chess
Geheimnisse der Bauernfuhrung im Schach
Dynamic Pawn Play in Chess
Understanding Pawn Play in Chess
An Active Repertoire for Black (Batsford Chess Library)
Play the Queen's Gambit
Play the King's Indian Defence
Opening Repertoire for Black
King Fianchetto Defences
King Pawn Openings (Chess Books)