Why was Gutenberg's printing press such an important invention?

a Paper had become too expensive.

b Explorers were able to navigate more easily.

c Books could be printed faster and easier.

d Merchants could sell their goods for more money.

His printing press has been widely considered the most important invention of the modern era because it profoundly impacted the transmission of knowledge. To answer your question, it was because books could be printed faster and easier because they used to have to be written by hand.