If you are interested in the period - post Cuban missile crisis to the arrival of President Carter - and you do not have a strong opinion on Henry Kissinger (HAK) then you are in a minority (or a coma). Written in 1992, this book focuses on his role as National Security Advisor and Secretary of State for Richard Nixon, Secretary of State for Gerald Ford. He left office in 1977, after an interval set up a consultancy peddling his expertise. Isaacson is no Kitty Kelly; this is not a "kiss-inger" and tell expose but a reasoned exploration of a life. Walter Isaacson went to Harvard and Oxford, a Rhodes scholar, a journalist (Time magazine) well connected to the world he has written about. While an outstanding book there are caveats.
You need to know about Richard Nixon; an immensely complex, and conspiratorial, loner. Laurel without Hardy (perhaps Hitler without Himmler) it is Nixon and HAK. HAK played to Nixon "whose dark insecurities were soothed by sycophancy." (p110). Then there is the world of the sixties / seventies, decades past but centuries away. The USSR was powerful and expansionist with Asia, Latin America and Africa being probed. America was tearing itself apart. Vietnam was a cancer - casualties without glory (Isaacson is specific about American losses indifferent to others which were horrendously higher - a not unusual trait of American authors). The prospect of a black president was fiction; containing revolution in the ghettoes was the immediate task. International terror and revolts were occurring (Paris 68, Baader-Meinhof for example, a plethora of Marxist-Leninist terrorists and the Chinese cultural revolution). The West was beleaguered and directionless then along comes the "Lone Ranger" Kissinger (or Nixon's Tonto). Isaacson essentially describes what HAK did not the impact he had. For every door HAK opened he slammed another shut. Ask the Europeans and Japanese. HAK believed "..the peace and stability of the world depends on the confidence other people have in America's credibility" (p 293). He ruthlessly developed his view of what made America credible and it was very uncomfortable to be in his way. Strategic policy aside, his superbly self cultivated image hid that "he hated to delegate, was indecisive and unclear in his orders, he had trouble setting priorities for his time, could not keep to a schedule, took out his frustrations on his subordinates and made no effort to conceal his contempt for the bureaucracy." (p557). He bit his nails, ate large quantities of junk food and his apartment was a midden.
Caveats aside if you are looking for someone to like, to even respect then pass by Kissinger. He is a product of European politics not those of the New World, a shark who swam in the piranha infested politics of the Potomac. HAK is a disciple of Mettenrich and Bismarck - "Realpolitik," of the Nineteenth century and Machiavelli. Kissinger's family were orthodox Jews who escaped from Germany in 1938, he was 15 and never lost his Bavarian accent. Having served in the US army he became an academic. This is a ruthless environment, warlords of words, memos, committees, intrigue, self-promotion and uninhibited egos. Kissinger excelled founding the Harvard Summer School and a journal ("Confluence") as vehicles for self-promotion. Here is the essence of HAK, what we now call a "networker" collecting contacts on a heroic scale and at some immense profit to him a consummate shadchen.
In a book exceeding 800 pages from Isaacson you obtain clarity in two dimensions; what Kissinger did and how he did it. HAK created a "tripolar" world. Recoiling from Vietnam the US could have become isolationist. But HAK developed detente with Russia and opened diplomacy with China. He fabricated a Maginot treaty around which the North Vietnamese won the war. His vision led to Cambodia being bombed and invaded. He embarked on arms control and evolved shuttle diplomacy in the Middle East after the Yom Kippur war (1973). This is all well-known historical narrative. Most of what HAK did unravelled with the Carter and Reagan presidencies. His view of the world was flawed and his conceptual brilliance an illusion.
Where Isaacsons's book becomes fascinating is in describing the HAK "operating" style. Secrecy and back channels, a lack of respect for people and contempt for institutions if not democracy itself. HAK lived by deceitfulness (excluding the State and Defence Departments and humiliating their heads - Rogers and Laird), plotting, leaking - you name it anything went including phone tapping his staff - Kissinger was culpable. Everyone was the enemy, paranoia and insecurity reigned. He was "devious with his peers, domineering with his subordinates, obsequious with his superiors." ( p100). On a personal level Isaacson illustrates that HAK is charming, witty and likes dogs. Kissinger, from this book, emerges as an impresario, performance without substance and a spiteful person. His phenomenal energy, a greed to put himself forward and take the credit disguised the fact that activity and results are not the same thing as the passage of three decades has shown.
Whatever knowledge you start with, this book is excellent. Rationally HAK did some necessary things. Many think he should be tried a war criminal (Cambodia, Chile, East Timor). In assessing Kissinger with the benefit of time, the question moves from expediency, what he had to do, to the morality of how he chose to do it (Chapter 29). "No American statesman has ever been more secretive and conspiratorial in managing foreign policy tactics, yet (especially after he became Secretary of State) none tried harder to explain to the press and public" (p659). He has written extensively and worked the press which is his true metier. Taking credit yes, certainly he has a lot to explain (or apologise for). The value of this biography is you can find your own opinion, Isaacson gives you all you require to make a well informed judgement.