Why are books so expensive in USA?

Related questions

1. Can eBook read PDF?
2. Can you read PDFs on Kindle Paperwhite?
3. Is an ebook a PDF?
4. Is reading books bad for your eyes?
5. Why books are better than ebooks?
6. Is Kindle better than books?
7. Are Kindle books cheap?
8. Can Kindle read to you?
9. Are Kindle books cheaper than real books?
10. What are ebook readers?

Tags

1. #those
2. #students
3. #whatever
4. #unusually
5. #textbooks
6. #class
7. #basically
8. #publishers
9. #prove
10. #particular
11. #economic
12. #where
13. #expensive
14. #price
15. #authors
16. #factors
17. #professors
18. #books
19. #college
20. #prices
21. #often
22. #charge