Unique book giving a full history of the Russian B-29 (Tupolev Tu-4) from its inception as a "Chinese" copy of the US B-29s which had emergency landings in Russia during WWII, through its development and its one potential war use during the Hungarian Revolution (fortunately the mission was recalled). Development of the design is included along with interesting and often experimental variants. Well illustrated. Highly recommended.The information is not available elsewhere in the English language (to my knowledge).