I just picked up a Midori cotton book. They come in a number of sizes, this one is the A6 size. I also have the A5 size. As you can see, with a fountain pen (Noodler's Elysium Blue ink, Knox nib), there is no bleed through and the dry time is satisfactory. I am not sure if someone is looking into a drop, but they are good paper. Comes in Lined, Grid, Dot, and Blank.