On the occasion of the publication of the book "The Wood That Makes Our Cities", François Leclercq and Paul Laigle, architects and urban planners, Michèle Leloup, journalist, Cyrille Weiner, photographer and editorial director, Jad Hussein, artistic director, Marie-Hélène Contal, director of cultural development, and Serge Gros, architect, teacher and researcher, ex-director of the CAUE in Grenoble, discuss the state of the French forest, the wood sector and its R&D.