Chris Carlsson, executive director of the multimedia history project "Shaping San Francisco" (foundsf.org), is a writer, publisher, editor and community organizer. He was a founder of the ground-breaking magazine Processed World, and helped launch the monthly bike-ins known as Critical Mass that have spread to five continents and over 300 cities. Carlsson has edited and authored numerous books, including Reclaiming San Francisco: History, Politics, Culture.