Yefim Gordon and Dmitriy Khazanov provide a fresh and detailed look at the Soviet Union's single most important WWII fighter series in their book "Yakovlev's Piston-Engined Fighters." The book is meticulously researched, and provides a wealth of information no doubt drawn from archival sources in Russia unavailable to Western authors until the end of the Cold War period. Gordon and Khazanov provide an in-depth look at the developmental history of the Yak-1, Yak-7, Yak-9, and Yak-3, including plenty of photos as well one line drawing of each fighter type and six pages of color paintings. One particular highlight is a detailed chart showing technical specifications for almost every variant of the four fighters listed above. Finally the authors balance their work with historical descriptions of the operational combat history of each aircraft. Overall this authoritative work ranks highly among available sources on Soviet World War II fighter aircraft.