Who wrote the book cold war?

There isn't one single book called "Cold War". The term "Cold War" refers to a historical period of geopolitical tension between the United States and the Soviet Union after World War II.

Many authors have written books about the Cold War, some of the most influential and well-regarded include:

* "The Cold War" by John Lewis Gaddis: A comprehensive and highly acclaimed work covering the entire period of the Cold War.

* "The Origins of the Cold War" by John Lewis Gaddis: A more focused exploration of the origins and early years of the Cold War.

* "The World at War: A History of the Cold War" by Geoffrey Roberts: A thorough and detailed account of the global impact of the Cold War.

* "The Cold War: A New History" by Robert McMahon: A more recent work that offers a fresh perspective on the Cold War.

These are just a few examples. There are many other great books about the Cold War by various authors. If you are looking for a specific book on the Cold War, it is best to specify your interests (e.g., a particular aspect of the Cold War, a specific country or region, etc.) so I can recommend a suitable book.