Karen Christensen is a publishing entrepreneur, activist, and author who writes about women and power, community, and climate change. She founded the Train Campaign and is a research associate at the Fairbank Center for Chinese Studies at Harvard. Information on her books-in-progress can be found at the links above. The Great Good Place II: Havens and Hangouts at the Heart of Community, coauthored by the late Ray Oldenburg, will be published in 2026.