Improve Your Chess Calculation: The Ramesh Chess Course - Volume 1 by R B Ramesh
Special hardcover edition of Improve Your Chess Calculation, winner of the 2022 Chess.com Book of the Year Award. The jury states that "a lot of resources can help you improve your chess, but books continue to be one of the most effective. And if your New Year's resolutions include getting better at the royal game, you should read Improve Your Chess Calculation by GM R.B. Ramesh".