Everything that you saw was written in books.
This must be considered deeper.
Any object created by people, your can see in the book.
Books can be different:
- artistic (many scenarios in films are based on books)
- documentary (the entire history of people is written into books)
- technical (all subjects were created with a technical description)
- special (all rules of life of people in the counrtyes are written in the book)
- teaching (all the knowledge received from the children's school to the academy)
- religious (all religions have their own books)
So be calm - we read always))