Before reading this book, you should keep in mind 2 very important things:
1. Who was Brezhinsky who wrote it.
2. When it was written and what it is about.

Zbigniew Brzezinski was the national security advisor to the US during the presidency of Jimmy Carter, one of the founders of the famous Trilateral Commission (a club of top politicians and businessmen from America, Europe, and Japan), as well as an advisor to Obama, the Rockefellers, etc.
He was the main "hawk" of the Democrats who marked the period of the Cold War.
Brezhinsky, of Polish descent and a member of an aristocratic family, was characterized by his hatred towards the Soviet Union, believing that its expansion should be severed at all costs. A position he supported in all the positions he served and marked an entire period in American foreign policy.

"Brezhinsky was nominally a Democrat (...). However, his deep animosity towards the USSR placed him on the right side of many Republicans, even Henry Kissinger or Richard Nixon," wrote the New York Times.

Among other things, Brzezinski supported US involvement in Vietnam, as well as economic and military aid to Islamist rebels (Taliban) fighting the Soviets in Afghanistan.
A decision that the US paid dearly for.

Brezhinsky was also the inspiration behind the failed operation to free the hostages at the American embassy in Tehran in 1980, which led to the resignation of then Secretary of State, Cyrus Vance.

His work "The Grand Chessboard," published in 1997, was essentially his proposal for the policy that the US should follow.

Brzezinski saw his dream, the dissolution of the Soviet Union, become a reality. However, he warned that American hegemony in the world cannot last for more than one generation because either it would provoke strong reactions from the rest of the world that would undermine it, or the American public opinion would tire of paying for and exercising this hegemony.