'Women in the Sky' examines Korean women factory workers' century-long activism, from the 1920s to the present, with a focus on gender politics both in the labor movement and in the larger society. It highlights several key moments in colonial and postcolonial Korean history when factory women commanded the attention of the wider public, including the early-1930s rubber shoe workers' general strike in Pyongyang, the early-1950s textile workers' struggle in South Korea, the 1970s democratic union movement led by female factory workers, and women workers' activism against neoliberal restructuring in recent decades. Hwasook Nam asks why women workers in South Korea have been relegated to the periphery in activist and mainstream narratives despite a century of persistent militant struggle and indisputable contributions to the labor movement and successful democracy movement.