Originally Posted by gwynevans
If you can't change the sources such that the page sizes are more suited to the 6" screen, probably the only thing that you could usefully do is to read them in landscape, as they might be large enough to read that way.
To toggle portrait/landscape, press and hold (for about 5 secs) the 'zoom' button.
Thank you gwynevans for your reply .. but to begin with most of those books are scanned with pics so, when I transfer them to the sony they come as a pic not as a documents as in the english pdfs for example. So, I don't know how to go about it, also I didnot understand your first advice. Sorry for that but I am totally useless when it comes to conversion and stuff like that.