Interesting read (no pun intended). I find that it is hard to read something when I'm thinking about other things, which is to say my mind wanders into other areas while reading so I lose track of where I am. But on the flip side when I'm fully engaged I have a hard time stopping reading and that can lead to some late nights where resting/sleeping would have been a "better" use of my time.
My biggest challenge has been with what I consider poorly written documentation for things. If I'm really busy and just want to use something to get one thing done, but can't because I have to read the documentation thoroughly in order to understand the special way a particular tool works, it can be excruciatingly difficult to force myself to read that.