When it comes to long, difficult slogs, I prefer audiobooks. Mostly consumed when exercising outside in nature. Imagine reading Moby Dick, and the author goes into a long boring diatribe about 19th century cetology. If you're sitting at home reading a physical book, pushing through is a long, difficult process that requires continuous effortful willpower. But when you're running a 10km, at worst you just zone out uti…
I really do need a book in text form, because it allows me full control over how quickly or in what order I consume it. I learned a long time ago that reading books linearly doesn't work for me, so reading as I do involves a thorough look at the table of contents, then a lot of skimming and jumping back and forth to find the most interesting/stimulating bits and assembling that into a coherent view of the book.