Depends on the type of book. I can go through police or law procedural novels quite fast.
This week I started to read a translation of Niccolo Machiavelli's Florentine Histories.
I'm still on the Introduction, admittedly only one "sitting", and I was already sleepy. Over the years I've read a lot of authors' writings about the history/stories of Florence so it won't all be new, but I'm betting his take on what he calls the histories will be, at the least, interesting. We'll see.
My reading count varies not only by type of book but whether or not I've a subscription to the New Yorker that year, as I read most of the articles in that magazine if I get it.
I may have more non-internet reading time from now on. Most news websites are now aggravating me with their new formats designed for easy use with smart phones.