Beside books, I have plenty of .pdf on my reader.
Reformatted to A5, they are readable.
A4 only can be read on 6 inch screen: just flip it around.
It is NOT laptop. It is just reader.
When I need laptop, I use one. But on the beach, bus, pub,
I like small, light gizmo. And no charging for few days!
And I can connect it to USB and sync anytime with laptop.
Now, my little sociological research:
People over 45 love it. We read books.
People below 30 do not understand why we love it: no colors,
no games, no keyboard, no internet access.
Those between 30 and 45 miss wifi/touchscreen.