Best is co-founder of the Institute for Critical Animal Studies (ICAS), formerly known as the Center on Animal Liberation Affairs (CALA), the first group dedicated to the philosophical discussion of animal liberation. His academic interests are continental philosophy, postmodernism, and environmental philosophy. He is the editor, with Anthony J. Nocella, of Terrorists or Freedom Fighters? Reflections on the Liberation of Animals (2004), which has a foreword by Ward Churchill, and the sister-companion volume on revolutionary environmentalism, Igniting a Revolution: Voices in Defense of the Earth (2006).