The Alchemy of Paint: Art, Science and Secrets from the Middle Ages , Spike Bucklow, Marion Boyars Publishers Ltd; 2009
Blue: The History of a Color, Michel Pastoureau, Princeton University Press, 2018
Sediments of Time: On Possible Histories (Cultural Memory in the Present), Reinhart Koselleck,
Stanford University Press; 2018
On Being Blue, A Philosophical Inquiry, Willam H. Gass, NYRB Classics; 2014
The Craftsman's Handbook: "Il Libro dell' Arte”, Cennino d'Andrea Cennini , Dover reprint 1954