Four copies of the yearbook. These are sent out by Australian Post. The Yearbook is read by club players and professionals in more than 50 countries. The backbone of every Yearbook are the more than 25 Opening Surveys, covering an amazing variety of variations. In each Survey a real expert introduces a new idea in a fashionable line, a forgotten opening or a wild gambit. The explanation of the strategic ideas is followed by a comprehensively annotated game and a selection of relevant games, always with supporting notes.