One of the first Glaze Recipe books

In his book "Three Books of the Potter's Art" published in 1548, Cipriano Piccolpasso writes:

“To those who deem me presumptuous in publishing this secret I answer that it is better many should know a good thing than few should keep it hidden”.


http://en.wikipedia.org/wiki/Cipriano_Piccolpasso

"Three Books of the Potter's Art" (Li tre libri dell'arte del vasajo) is a description of the techniques of majolica. ( Ne quai si tratta non solo la prattica ma brevemente di tutti li secreti di essa, "in which are treated not only the technique but also briefly all the secrets of it.")