Hoping for somebody to help a very poor techno person. 
I am considering buying a kindle for dd 11, but don't understand the first thing about them.
My first question is why are some books available for free but others are still lots of pounds?, and does it make it cost efficient?
- Is it really simple to download books?
- Which one is the best on a budget, so not in the £100's.
- Is black or white case better?
- Is there anything else on the market which is as good or better?
Also, any other info/ advice you could offer.
Tia