Sergey Prokofiev, arguably the most popular composer of the twentieth century, led a life of triumph and tragedy. The story of his prodigious childhood in tsarist Russia, maturation in the West, and rise and fall as a Stalinist-era composer is filled with unresolved questions. This book probes beneath the surface of his career and contextualizes his contributions to music on both sides of the nascent Cold War divide. The book contains previously unknown documents from the Russian State Archive of Literature and Art in Moscow and the Prokofiev Estate in Paris. The literary notebook of the composer's mother, Mariya Grigoryevna, illuminates her involvement in his education and is translated in full, as are ninety-eight letters between the composer and his business partner, Levon Atovmyan. The collection also includes a translation of Sigizmund Krzhizhanovsky's unperformed stage adaptation of Eugene Onegin, for which Prokofiev composed incidental music in 1936