Silvia Federici is a feminist writer, teacher, and militant. In 1972 she was cofounder of the International Feminist Collective that launched the Wages for Housework campaign. Her books include Witches, Witch-Hunting, and Women; Caliban and the Witch; Re-enchanting the World; and Revolution at Point Zero.
Poh-Gek Forkert is a research scientist and toxicologist and has published more than eighty papers and book chapters on the metabolism of toxic chemicals. She has worked with environmental lawyers and citizen groups, and testified at hearings of the Environmental Review Tribunal, most recently at the Paris Pit case. She is professor emerita at Queen’s University.