Final answer:
The Europeans had writing for various reasons and the use of paper and the invention of the printing press were innovations that helped the creation and spread of books in Eurasia.
Step-by-step explanation:
The Europeans had written for various reasons. One innovation that helped the creation and spread of books in Eurasia was the use of paper, which came from China in 770 CE. The Europeans adopted paper as a cheaper and easier alternative to parchment. Another innovation was the printing press, invented by Johannes Gutenberg in the middle of the fifteenth century. The printing press allowed for the mass production of books, making them more accessible and affordable.