First, important things were printed like books.
Well, because the mob was quite illiterate at the time.Then also such fiction was printed, meaning for the reading of the book.
printing and marketing is an inseparable couple.
Well, who would prohibit the rich?
It is true that it has many varieties and uses different techniques and materials (paint, paper).The main division is cold printing, where the paint is fixed by soaking into paper. While the 'hot' offset where the printed paper web passes through the drying tunnel. The classic offset (water) is associated with the use of water rollers and hydrophilic and hydrophobic surfaces, however, this method is already abandoned due to the difficulty in obtaining a good balance of water and oil paint. The successor of this method is anhydrous offset printing where silicone molds are used instead of water.
You can also include word processors, programs provided by print equipment manufacturers, to the pool of programs needed for such work. .