The Dutch (1.d4 f5) is a superb weapon for ambitious players. Black rejects all thoughts of playing for sterile equality, and stakes a territorial claim on the Kingside. Quite often Black's plan can be summarized in one Checkmate! This book provides a full repertoire for Black with the Dutch, with the cornerstone being the Leningrad variation, a favorite of GMs Bareev, Gurevich, Malaniuk and Speelman. If you like more than passive resistance with the black pieces, then this book, focusing on variations which maximize Black's potential in detail.