I've been trying to get free books on kindle since yesterday and I still don't understand how. I downloaded some free books but when I try to download these they turn from free to paid.
http://www.amazon.com/Catching-Secon...s_154606011_11
http://www.amazon.com/The-Farmers-Al...s_158127011_10
http://www.amazon.com/Ask-Jackie-Can...ywords=canning
Can someone please tell me what I'm doing wrong?