Economic perspective/value

Questions

1. Sharing of value and information how is this done by books?
2. How do books (or knowledge) offer power to readers?
3. Price difference of books around the world?
4. How much influence do books and perspective have on the economy of countries?
5. How many copies are sold of a book in average book?

Discussion

Sharing of value and information how is this done by books? How do books (or knowledge) offer power to readers? Price difference of books around the world? How much influence do books and perspective have on the economy of countries? How many copies are sold of a book in average book?