Introduction Madelyn Rose Sanfilippo, Michael J. Madison, and Brett M. Frischmann; 1. Smart Cities and Knowledge Commons Michael J. Madison, Madelyn Rose Sanfilippo and Brett M. Frischmann; 2. The Challenge for Cities of Governing Spatial Data Privacy Feiyang Sun and Jan Whittington; 3. Open Governments, Open Data Anjanette Raymond and Inna Kouper; 4. Community Land Trusts as a Knowledge Commons: Challenges and Opportunities Natalie Chyi and Dan Wu; 5. Smart Tech Deployment and Governance in Philadelphia Brett M. Frischmann and Martha Tonkovitch; 6. The Kind of Solution a Smart City Is Michael J. Madison; 7. Technofuturism in Play Madelyn Rose Sanfilippo and Yan Shvartzshanider; 8. Can a Smart City Exist as Commons? Anna Artyushina; 9. From Thurii to Quayside Richard Whitt; 10. A Proposal for Principled Decision-Making: Beyond Design Principles Madelyn Rose Sanfilippo and Brett M. Frischmann; Conclusion Brett M. Frischmann, Michael J. Madison and Madelyn Rose Sanfilippo.