Jan Gehl is a Danish architect who pioneered the field of urban design focused on improving public spaces and making cities more people-friendly and livable. Over the past 50 years, he has consulted on urban design projects in many cities around the world. His research and public space surveys have helped shift planning priorities from cars to pedestrians. Many cities like Copenhagen, Melbourne, and New York have implemented his recommendations to create more walkable and bikeable streets and public spaces that improve quality of life.