Encyclopedia of Chess Openings - BOOK D
The fourth thoroughly revised and updated edition of the Encyclopaedia of Chess Openings, Volume D, brings an additional 56 pages of brand new material on 1. d4 d5 & 1. d4 Nf6 2. c4 g6 followed by 3...d5: Queen's Gambit (Slav, QG Accepted, Orthodox, Tarrasch, Tartakower, etc.), Gruenfeld, Queen's Pawn, etc.