While living in the Soviet Union, she became more happy with the Soviet government and wrote many books praising it. They include: "The Soviets Conquer Wheat" (1931), an updated version of "China's Millions: The Revolutionary Struggles from 1927 to 1935" (1935), the best-selling autobiographical "I Change Worlds: the Remaking of an American" (1935), "This Soviet World" (1936), and "The Soviet Constitution" (1937). 