Fizkultura i sport, Moscow, 1959, hardback, 296 pp, 390 grams, condition: good+, no inscriptions.

Yakov Borisovich Estrin (1923 – 1987) was a Russian chess player, chess theoretician, writer, and World Correspondence Chess Champion who held the titles of International Master and International Correspondence Grandmaster.

After a brief foray into  play, he turned to correspondence chess in the early 1960s with immediate success (joint first place in the USSR Correspondence Championship in 1962). He became an International Correspondence Grandmaster in 1966, and would go on to compete in the final of the World Correspondence Championship five times. He is best known for being the seventh ICCF World Champion, 1972–1976. For over-the-board play, he was awarded the International Master title in 1975.

Estrin wrote several chess books and was an authority on the Two Knights Defense.