This symposium aims to bring together the points of view of those who have come into contact with the vision of this movement of thought, developing it, criticising it, revising it and, in so doing, bringing it to life and helping it to evolve. On the occasion of the 35th anniversary of the DEA JPT, this conference aims to question the thinking and action undertaken since the 1990s around Landscape as a scientific, political and operational field and its current role in the context of the contemporary social, ecological and climatic crisis.