How does the 7 day Japan Rail Pass work?

Related questions

1. Can I use JR pass from Tokyo to Osaka?
2. Which JR trains have Green cars?
3. Do I need JR pass from Osaka to Kyoto?
4. How do I book a Shinkansen with JR Pass?
5. Is Shinkansen covered by JR pass?
6. What is JR Green pass?
7. Is it cheaper to buy JR Pass in Japan?
8. Can I use JR pass in Osaka?
9. Can I use JR pass from Kansai airport to Osaka?
10. What is covered by JR pass?

Tags

1. #therefore
2. #voucher
3. #march
4. #midnight
5. #whatever
6. #valid
7. #using
8. #japan
9. #until
10. #start
11. #activated
12. #count
13. #exchanged