It can be clearly seen that the cost of printing a book is in inverse ratio with the number printed. When the number is small, the cost per copy is great; when the number is great, the cost per copy is small. Printing is an economical process only for books of many copies. If there were not a very great number of book-readers and book-buyers, printing could not be practised to advantage.
In the fourteenth century this multitude of book-readers had not been created. One hundred copies would have been considered a great edition, and the engravers or printers who took such a hazard would have waited many years for purchasers. Their unwillingness to take an unwise risk has been often regarded as an evidence, not of their sagacity, but of their stupidity. There are writers who have taught that the project of a printed book was a grand conception, not to be imagined by any but a great inventor — an idea far above the capacity of any printer of playing cards or images; but the legends in the image prints teach us that the early engravers knew how to engrave the letters, and that they could have engraved entire books of letters if they had thought it expedient. The advantages or disadvantages of engraving books were considered by them as they would be by publishers of our own time, purely as an economical question. The early engravers decided that books of letters could be appreciated, and would be purchased, only by the educated, a class too small to reward the labor of the engraver. For the making of books, printing was not regarded as an economical process, and books were consequently made by the cheaper process of writing.
While it was unprofitable to engrave letters for books, it was profitable to engrave designs for printed fabrics, images and playing cards. On work of this character, the relations of cost and sale were completely reversed. The expenses for engraving one design, one image, or one suite of cards, was small; but the sale of the work printed from the blocks was generally very large. Fabrics that could be worn, cards that
