...or process books, journals, whatever. Call it what you want. There's been some good conversation lately at work/school about how we use these, and what the value is in doing so. Obviously it's different for everyone, but whether or not you think of yourself as an artist or a maker, there's inherent value in making marks on a regular basis. And for me it's best to have multiple books so that I can always have one nearby: in the car, in my office, in my pocket....they're full of notes and things to remember, but more often lately they're just a way to focus on something. You could call it mindfulness or meditation I suppose. Get out the pencil and do something. It allows for the use of brain and hand power in a way that's direct and deliberate; I'm not being a passive consumer of anything when I make marks on a page.