Really? You must have missed the explanation right there in the middle of the page, underneath the title and picture:
Introducing Kindle MatchBook
For thousands of qualifying books, your past, present, and future print-edition purchases will soon allow you to buy the Kindle edition for $2.99, $1.99, $0.99, or free.
I'm not sure how they could have stated that any more clearly.
Introducing Kindle MatchBook
For thousands of qualifying books, your past, present, and future print-edition purchases will soon allow you to buy the Kindle edition for $2.99, $1.99, $0.99, or free.
I'm not sure how they could have stated that any more clearly.