I absolutely love my B5 Northbooks! The graph or dot is my favorite for bullet journaling, and the page count is perfect for planning quarterly. The squares are by 1/2 cm. The paper is high quality, of a nice thickness, and works well with my Zebra Mildliner highlighters, and markers such as the Kuretake ZIG dot markers (no bleed or show-through). Fountain pens work marvelously, drying quickly but not bleeding through. The binding is 3 very sturdy staples, and the books hold together very well--I fold the entire book backwards from time to time, and the binding hasn't even loosened. USA-made quality! I use the plain B5s as sketchbooks as well, and haven't found much I can't do with them--watercolor and ink washes don't sit on the surface OR bleed through (at least not very much unless you make a lake of water), and there's a subtle amount of tooth to the paper to hold pencil drawings very nicely. The B5 size is nice and spacious, but still compact enough to carry around easily in a small bag or purse. Highly recommend Northbooks--can't go wrong with any notebook you pick here!