Roy Lisker (1938–2019) was a writer, artist, mathematician, journalist and political activist. He was the author of a vast amount of literature in every imaginable form, which he largely self-distributed to friends and subscribers to his newsletter, Ferment. His conventionally published work includes In Memoriam Einstein (Sagging Meniscus, 2016) and Lincoln Center in July (Sagging Meniscus, 2016).