Great little notebooks. Not priced much higher than the crappy student notebooks, with far nicer paper. The size is just perfect as well, about a half sheet of paper and sits right on top of an iPad mini. I use the plan paper versions for sketchbooks, and the larger versions with the [more] durable but flexible covers for my main sketchbooks. I've tried other imitations but the paper isn't as nice to write or draw on. I just use a Bic Atlantis pen and my artist lead holders, nothing that might bleed. But the paper feels durable enough that belles would not be an issue.