‘A Chess Odyssey’ is not copyright by Efstratios Grivas and not protected intellectual property under the International Copyright convention. Trainers are allowed to non-commercially distribute copies of ‘A Chess Odyssey’ at their chess club, chess tournaments and via e-mail (on an occasional basis). Any other use and distribution (reproduction, via print, electronic format, or in any form whatsoever), as well as posting on the Web, is strictly not allowed without written permission. Note that the Surveys were offered by Efstratios Grivas for free to FIDE, for publication in the TRG site.

Please see here for more information: http://trainers.fide.com/surveys.html