In 1992, The New York Times wrote: "First published in 1952, Alan Bullock's "Hitler: A Study in Tyranny" remains the standard biography of the dictator and a widely respected work on the Nazi movement in general".

In 1998, Hitler expert Ian Kershaw described the book as a "masterpiece".

In his 2007 book Cultural Amnesia, critic Clive James wrote: "Books about Hitler are without number, but after more than 60 years, the first one to read is still Alan Bullock's Hitler A Study in Tyranny."