Bob Ostertag's work cannot easily be summarized or pigeonholed. He has published more than twenty albums of music, five books, and a feature film. His writings on contemporary politics have been published on every continent and in many languages, beginning with his work as a journalist covering the civil war in El Salvador in the 1980s. His books cover a wide range of topics, from labor unions to the history of journalism to estrogen and testosterone. He has performed at music, film, and multimedia festivals around the globe. His radically diverse musical collaborators include the Kronos Quartet, John Zorn, Mike Patton, transgender cabaret icon Justin Vivian Bond, British guitar innovator Fred Frith, EDM DJ Rrose, and many others.