The Lexicon pamphlet series, a project of the Institute for Anarchist Studies (IAS), aims to convert words into politically useful tools—for those already engaged in a politics from below as well as the newly approaching—by offering definitional understandings of commonly used keywords. The following pamphlets are in this series: “Power” by Todd May, “Colonialism” by Maia Ramnath, “Gender” by Jamie Heckert. “Anarchism” by Cindy Milstein, and “White Supremacy” by Joel Olson.