'Spy in the Sky' matters have long been a source of interest and fascination for aircraft enthusiasts, historians and modellers and none more so than the elusive and secretive Soviet types of the Cold War era. Yefim Gordon presents us here with a range of such types, presenting a collection of photographs, profiles and line drawings together with supplementary text detailing the history of each craft, encompassing the various developmental milestones, successes and pitfalls experienced along the