In the Guardian, Adrian Searle writes about his usage of notebooks:
One for dreams, one for writing down things you might otherwise forget, one for composing drafts and organising your thoughts: in the end, they all get mixed up, but that’s half the fun of keeping notebooks. You could use your phone, but it isn’t the same. Unlike JMW Turner’s sketchbooks or his palette, you can’t stick an iPhone in a vitrine in some Tate archive show – should you end up there. It might ring.
Read more: Confessions of an art critic: I can’t believe the things I write in my notebooks