Kill the K.I.D - Semko Semkov
Paperback, 140 pages, 2009 Chess Stars Publishing
This book offers an entirely new approach to the Four Pawns Attack against the King's Indian Defence (KID). The author develops original aggressive ways to combat the KID and analyses them in great detail. He also covers various Modern Defence move orders / transpositions.
Semko Semkov has authored several bestselling opening books such as The Safest Sicilian and The Queen's Gambit Accepted. He has two GM norms and has played for the Bulgarian national team many times.