Love these little notebooks, I do a lot of writing and graphite drawing, also some colored pencil. They work for this, though I do not use both sides of the paper. Great to carry in a bag as you grab them and run out the door. I even like the cover, you can decorate them to suit yourself, label them, or leave plain as I usually do. Try them, you will like them. Also excellent service. I do not use markers or ink in mine and I don't think they would take that, but they don't say they do. They do take ballpoint. I use mine as sketchbooks while traveling, out on nature trips, or journaling and traveling. Excellent for that.