I was in an artist supply store recently with a Friend of mine and we were both buying sketchbooks when he asked me, “ do you ever fill them?” “ yes I do” I replied. And yes I do, it might take some time for some of them because it depends on what I’m working on. I might need one for pure doodles, one for calculations or figure drawing. I choose the right one for the job, time or my mood. Sometimes I also tear pages out and that is for some artists blasphemy. Every artist has its own sketchbook habit. I always have one by my side and makes a great companion. I included a complete sketchbook in A4 format.