It is an instruction book for artists on several subjects some of which are block printing on fabrics and painting wall hangings. It was originally published in Italian in 1437. I bought it on a whim and found it more useful than I'd dared to hope. I seek primary sources to substantiate, or refute, her statements. If anyone on this list has more current information, please post to the list.
China is thought to have been the initiator of block printing.
However true this may be, the National Museum in the Forbidden City does have some wooden blocks dating from 200 BC much later than the records of the use of clay stamps in Mesopotamia. The earliest known piece of block-printed cloth was one, belonging to the ninth century AD, found in a Coptic tomb in Egypt. The knowledge of block printing spread northward from the Mediterranean area into Europe. Another piece of this type of work was found in the tomb of St. Cuthbert, who was buried in Durham, England, in 1104. A thirteenth century record mentions that block printing was being done in Italy at the time.