Efstratios Grivas (30.03.1966) is a highly experienced chess trainer and chess author. He has been awarded by the International Chess Federation (FIDE) the titles of International Chess Grandmaster, FIDE Senior Trainer, International Chess Arbiter and International Chess Organiser. His main successes over the board are the Silver Medal Olympiad 1998 (3rd Board), the Gold Medal European Team Championship 1989 (3rd Board) and the 4th Position World Junior Championship U.20 1985. He has also won 5 Balkan Medals (2 Gold - 1 Silver - 2 Bronze) and he was 3 times Winner of the International ‘Acropolis’ Tournament. He has also in his credit the 28 times first position in Greek Individual & Team Championships and he has won various international tournaments as well. He was also been awarded five FIDE Meals in the Annual FIDE Awards (Winner of the FIDE Boleslavsky Medal 2009 & 2015 (best author) - Winner of the FIDE Euwe Medal 2011 & 2012 (best junior trainer) - Winner of the FIDE Razuvaev Medal 2014 (Trainers’ education) and has been a professional Lecturer at FIDE Seminars for Training & Certifying Trainers. He has written more than 100 Books in Arabic, English, Greek, Italian, Spanish & Turkish. Since 2009 he is the Secretary of the FIDE Trainers’ Commission and since 2012 the Director of the FIDE Grivas Chess International Academy (Athens). This is his sixth book for Thinkers Publishing.