Grandmaster Malaniuk has been the main driving force behind the Leningrad Variation for decades. He has found many original plans which turned this branch of the Dutch into an active and dangerous weapon. White cannot enter dull and boring positions even if he insists on this.
Therefore, it is often used when Black wishes to play for a win, particularly in decisive games. The book also offers a repertoire against 1.c4 and 1.Nf3.