GM Evans, one of America's strongest post-World War II players before Fischer, clearly explains the fundamental concepts of modern chess theory. In "New Ideas" Evans resolves the game's dynamic complexities into the major elements of Pawn Structure, Force, Space, and Time. Using examples from his own games, he shows how these dynamic and static elements are conbined in winning play. Virtually every page illustrates a new theme such as "The Minority Attack", "Try to Keep Isolated Pawns Mobile" and "Converting Time into Pawn Structure." Each theme begins with a position from master play; Evans then works through the ensuing 8-12 moves with the reader to show how the theme is carried out in practice. This is a gem of a book that is as entertaining to read as it is educational.
Jeremy Silman, in his book "How to Reassess Your Chess," advises that players learn to recognize the "dynamic imbalances" in a position so as to develop the proper plan. Nowhere will you find greater clarity in how to assess a chess position than in Evans' "New Ideas." This was the first chess book I ever read nearly 20 years ago, and it's still one of the best. Recommended for anyone up to candidate master (expert) level.