Desiring God has now made John Piper's latest book, another of his wonderful sets of three Christian biographies, available for free download. To get this newest title, click here. If you wish to see the list of over thirty titles available from DG, cllick here.
You should be grateful to Piper and DG for making these resources available for free. This is a kind and God-glorifying thing. Also, whether intentional or not, these guys have made Piper's books available to me in an accessible format, for which I am extremely grateful.