I consider myself to be unable to read more than an hour or two at a time. I know some people spend entire days reading. I'd like to do that too, so should I just power through? My eyes and possibly even my brain gets tired.

Switching back and forth between two books helps somewhat, as if I get bored of one I can switch to the other and then when I get bored of that one I can switch back. It helps if the two books have very different style and subject matter (e.g. one fiction and one nonfiction).

I seem to be harboring the possibly delusional idea that if I read too much I'll not get as much out of it, and should just stop after only a chapter or two.

How much time do you spend reading at a time? Do you wish you could spend more time in a single sitting? If you are able to read a lot, how do you do it?