Originally Posted by markom
Kindle DX can read epub files as well as djvu and cbz without problems.
All it takes is a few minutes to install kindlepdfviewer.
As for book transfer, he should use some laptop/netbook and if there is no SD card port on laptop he should use some cheap 1 $ usb-SD adapter.
The man in question doesn't have a laptop; he lives in a rwmote location with only a solar power cell.