The world's top trainer, Mark Dvoretsky, and one of his best-known pupils, grandmaster Artur Yusupov, present a five-volume series based on courses given to talented young players throughout the world. The books contain contributions by other leading trainers and grandmasters, as well as games by pupils who have attended the courses. The second volume explains the basic principles of the opening, discusses how to build an opening repertoire and produce opening novelties, and explores the connection between the opening and the later stages - the middle-game and the endgame.