To purchase "The Redeemer" by Jo Nesbo for Kindle, sign into Amazon.com, search Amazon.com for the book, choose the Kindle format from its product page. and click the Buy Now button. The book downloads immediately to the Kindle registered on the account, as long as the Kindle is connected to the Internet via a Wi-Fi or 3G connection.
To confirm the devices registered to a specific Amazon.com account, on the Amazon.com site go to Manage Your Content and Devices. This section lists all of the devices registered to the Amazon.com account being used.
An alternative to buying a book from the Amazon.com website is to borrow it online from a local library. Many local libraries now offer the opportunity to borrow books online via a system called OverDrive. Borrowing a book this way, is free, although anyone wishing to borrow books online must sign up as a library member, which is also free. The library then gives the borrower a set amount of time in which to finish reading the book before it is automatically removed from the Kindle. However, not all libraries offer OverDrive, and not all of the books sold on Amazon.com are available via this digital library service.