Mauro Manca is an Italian architect, professor of sustainability at the International University of Catalonia, founder and leader of Energreen Design and Fitbuildings, two business projects with the aim of implementing the circular economy transversally in the building sector. Mauro actively collaborates with public and private organisations in the field of sustainability, bioclimatic architecture and circular economy, he is a member of the Circular Economy working group of the Green Building Council Spain, and a scientific collaborator of the Ryerson University of Toronto, Be Top Lab.