Why was the twentieth century called the “Era of the Book”?

Question

Why was the twentieth century called the &#x201C;Era of the Book&#x201D;?

Philoid · Accepted Answer

In the twentieth century, there were books about everything from anteaters to Zulus. The books covered all the topics and taught people the basic know-hows. The books had educational content, illustrations and decorations. All these benefits made the twentieth century the Era of the book.