The book deals with positional sacrifices. Most sacrifices have a forcing aim in mind, but most profound of all are positional sacrifices where the end is impossible to foresee and thus fine judgment, understanding and intuition are required. Author presents the theme on 150-200 games sorted by openings. The games are analysed and explained in great detail, each of them has also a summary in the end. The analysis are accompanied by many diagrams, often up to ten diagrams per game. Mihai Suba is a Romanian GM whose previous book, Dynamic Chess Strategy, was highly acclaimed by the critics and won the BCF Book of the Year prize. Further information about the book is available at qualitychess.co.uk