A textbook of strategy for intermediate and stronger players. Material is divided into 26 chapters examining themes like The pawn centre, The open file, Strong and weak squares, The Bishop pair, Space advantage etc., always with detailed word explanations and samples from practical play. This 3rd edition is improved and enlarged, it has a new chapter called Total Control with exercises. Name index at the end. Author is Dutch IM and trainer with over 25 years of experience (Loek van Wely, Jan Werle). Previous edition was awarded as ChessCafe 2009 Book of the Year. Sample of the book is available at publishers website newinchess.com