This is an estate find and appears to be unused and like new.

"Secret Notes" is a trade paperback book in English published by Edition Olms in 2007. Written by Sergey Voronkov and David Bronstein, it is part of the Progress in Chess Series and focuses on the topic of chess, making it a valuable resource for enthusiasts and players looking to improve their skills. The book includes illustrations and spans 232 pages, providing readers with a comprehensive look at the world of chess and sports in general.