Sasha Geffen is the author of Glitter Up the Dark: How Pop Music Broke the Binary (University of Texas Press), named a best book of 2020 by NPR, Rolling Stone, and Kirkus Reviews. The accompanying podcast Shattering Gleam won medals at the 2022 Signal and Anthem awards. Geffen's writing on music, gender, technology, and embodiment appears in Pitchfork, Vulture, The Nation, and many other publications. They teach at the Lighthouse Writers Workshop and spin vinyl as a third of the Denver-based DJ group Sunhigh. Originally from Boston, they spent a decade in Chicago before moving to Colorado in 2017.