This list completes and updates the one contained in De Giorgi’s obituary, appeared in 1999 on Boll. UMI, Sez. B, (8)2. We decided to include also some writings (as for instance [125]) that are not publications in a strict sense. De Giorgi, in particular in the last years of his life, used to circulated them among friends and colleagues, asking for opinions. We plan in the future to collect and to make available all these unpublished writings.