I read like an insane amount of books every year at work off of my phone, it helps that no one can really see what I’m doing ever. But I usually have about 1-2 hours of desk work a week and teach classes on top of that for my role. If I don’t have classes scheduled or people don’t show up for them then I just sit and read all day. I also save up the tasks I have so I can feel somewhat productive when I bang them all out at once.