City Agencies are arenas for debate, to listen to citizens, to dialogue, participate but also present and translate collective requests, activating urban commons. They feed local debate, and they are places where citizens can inquire about life in the cities and urban change, inquiring about ongoing policies, plans and projects, and put suggestions forward. Between 2017 and 2019 the EUCANET partnership has promoted a wide and open reflection on the role, scope and missions of City Agencies, involving researchers, scholars, practitioners and professionals from all over Europe. This e-book provides insights on the ongoing debate, presenting the diverse and mutifaceted emerging perspectives, and exploring potential research directions for the future.