Too long in my opinion. There is so much knowledge and fun hidden in all the books that exist, and it mostly annoys me how long it takes me to read them. Granted, I read everything in English rather than in my native language (unless it's a German book of course), but I'm having a hard time chewing through the Feast for Crows novel, despite finding it interesting. On the other hand, I could casually read the first Hunger Games book in a couple of evenings.

I have a huge reading backlog, because of the many recommendations I get, and I'm sure I would never run out of interesting books to read in my entire lifetime, yet it takes me ages to finish books sometimes, even if I like to read them. One of the reasons is that I can't read for a long time in one go, I prefer reading a chapter and then doing something else, maybe 2-3 chapters (depending on length) or more, but very rarely and only if it's super engaging. Another reason being that my reading speed feels really slow, especially when I can't shut off my inner voice, which slows you down drastically.

But it's also a bit my own fault, because I don't really take my time for reading, with all the games to play and series or movies to watch nowadays. I'm sure at least that will change in the future.