Foreword Philippe Jockey INTRODUCTION L'éclat: the scientific challenges of an extinguished brilliance Philippe Jockey THE VOCABULARY OF LIGHT REFLECTED All that glitters is not gold... Clarisse Prêtre Matte surfaces: meaning for audiences of 18th-century pastel portraits and the implications for their care today Thea Burns Brilliance and the imprint: Roman mural painting, an architectural epidermis Maud Mulliez The eternal life of the painting: obliteration versus the brilliance of the artist's genius Ana González Mozo ANCIENT, MODERN AND CONTEMPORARYS TAGINGS OF ÉCLAT AND ITS ERASURE Architecture and the radiance of Greek sculpture Sophie Montel Colour, radiance and meaning. A semiological perspective on Greek Archaic Korai Anthony Mathé Technology in the arts, humanities and cultural heritage Franz Fischnaller Ritual practices of 'preservative' obliteration in the Iron Age. An archaeological perspective on the choice of colours and materials Mario Denti De-gild, re-gild, erase. The decorations of Paleo-Christian churches (4th-6th century). The morals of religion and the political discourse of erasure and obliteration – the role of materials Elisabetta Neri "A world of material splendour". Walter Pater and the paradox of Greek sculptural polychromy Charlotte Ribeyrol "A world of material splendour". Walter Pater and the paradox of Greek sculptural polychromy Charlotte Ribeyrol POST SCRIPTA Some reflections on éclat and its erasure. The perspective of a restorer and translator Helen Glanville The luminous materials of the divine Claudio Seccaroni Cronache del restauro Il Gabinetto in "cuoio dorato" della Villa Reale di Monza. Provenienza, analisi e restauro Sofia Incarbone Un inedito duplice bozzetto di Joseph Mallord William Turner Roberta Lapucci, Leonardo Borgioli Il Ritratto del Conte Antonio Porcìa di Tiziano e i suoi restauri Andrea Carini Il restauro di Modulo bianco a tripla struttura di Vanna Nicolotti Lodovica Picciolli, LuciaVanghi La ricerca Valorizzazione e conservazione del patrimonio fotografico. Intervento di conservazione in "cold storage" di materiali sensibili su pellicola Letizia Montalbano, Annalisa Lusuardi, Emanuela Sesti Metodologia di studio per il restauro di un abito del XVII secolo. Riscoperto a Milano un capolavoro d'arte suntuaria Francesco Pertegato