A questão refere-se ao texto seguinte.

In the mid-fifteenth century Johannes Gutenberg invented a mechanical way of making books. This was the first example of mass book production. Before the invention of printing, multiple copies of a manuscript had to be made by hand, a laborious task that could take many years. Later books were produced by and for the Church using the process of wood engraving. This required the craftsman to cut away the background, leaving the area to be printed raised. This process applied to both text and illustrations and was extremely time-consuming. When a page was complete, often comprising a number of blocks joined together, it would be inked and a sheet of paper was then pressed over it for an imprint. The susceptibility of wood to the elements gave such blocks a limited lifespan.

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