How Many Books Can Someone Really Read?

Recently I did some reorganizing of our bookshelves and notice something interesting and kind of disturbing:

I’ve got somewhere around 60 physical books sitting on my shelves that I’ve yet to crack open.

Now, I read fast—really fast—and some of these are small books, but is it really possible to read all of these, plus the others that keep finding their way onto my “to-read” list?

At what point does it become too much and how can I manage to get through the most important books, if not all of th...