both sides of the chessboard

The commentary is from both Robert Byrne and Ivo Nei, and in my hardcover edition, an intro by Max Euwe, so you have some insight from 3 top level chess players/official. The book covers Fischer v. Taimanov, Fischer v. Larsen, Fischer v. Petrosian and culminates with the Fischer v. Spassky match of 1972. I was very pleased to see the matches leading up to the championship because Fischer won the qualifiers with an unprecedented perfect record.