This book presents a Black repertoire based on the QGA. The authors consider the Classical System with 3.Nf3 Nf6 4.e3 e6, but they also offer alternative approaches - building up tension with 4...Bg4, and the destructive 4...a6 aimed at quick equalisation. They pay special attention on the ideas behind the moves, leaving the detailed coverage for the "Step by Step" sections.
You'll also find advice against Queen's pawn openings where White refrains from 2.c4.
Alexander Delchev is the European Grand Prix winner in 2004. He has played in many Olympiads for Bulgaria. His best Elo was 2669, current rating - 2604. Delchev is the author of The Most Flexible Sicilian, The Safest Sicilian, The Safest Grünfeld and The Modern Reti. Semko Semkov played for Bulgaria in one Olympiad. He is a chess journalist and theoretician. He has authored Kill K.I.D. and four other books.