This publication is prompted by a Special Session on a related topic, organized by the editor of this book in the framework of the 5th International Conference on “Changing Cities V: Spatial, Design, Landscape, Heritage and Socio-Economic dimensions” (20-25 June 2022, Corfu Island, Greece).

The aim of this collective work is to investigate the concept and content of the term “innovation” in the highly interdisciplinary field of Urban Planning, highlighting –through appropriate theoretical approaches and case studies– the type, the range, and the depth of its possible features.

The participating distinguished authors have, to their credit, very interesting research activity and they cover a wide range of specialized subjects, as well as scientific fields connected to the sciences of space.