One way in which the medium matters is the duration of an average reading session. After installing kindle on my phone, I found myself enjoying reading in very

One way in which the medium matters is the duration of an average reading session. After installing kindle on my phone, I found myself enjoying reading in very short sessions, e.g. while queueing for coffee. This different interaction with a book makes me choose books with shorter sections on my phone, than I would on the Kindle device I use before bed. In particular, I found some textbooks with short sections to be excellent for this kind of short reading.