Dr Enrico Sassoni won the best-poster award at the 13th International Congress on the Deterioration and Conservation of Stone held in Paisley, Scotland from Sept 6-9, 2016. The poster entitled, "Conservation of sugaring marble by hydroxyapatite” and co-authored by Gabriela Graziani, Elisa Franzoni, George W. Scherer, described recent progress in developing coatings of hydroxyapatite to protect marble from weathering.