This is a new product for me. I originally found this at a college bookstore out of town while shopping for my kids. I'm using it at work. The size is great for toting to meetings; it's more compact than letter-size but roomier than typical A5-size options. Also it's wider than a steno book, which suits my wordy note-taking style. :) I use the graph grid top half of each page for figures, diagrams, outlining, checklists, timelines, etc., and the bottom ruled half for notes. The paper is very smooth, much better than most notebooks at this price point. The pages aren't perforated, but that's fine, as I use this to keep everything together in one place, not as a tear-off notepad. There is some "ghosting" through to the other side of the page, depending on the ink you use, but I can still write on both sides of the page. Overall it's been very handy and fun to experiment with. Several colleagues have asked where I got it. I'm glad to be able to reorder here. I would love a refillable nylon or vinyl slipcover designed specifically for this size and thickness of notebook, to give it some pockets and a pen holder, and also to hide the old-school academic cover. But it's not ugly, and it doesn't have cartoon characters on it, so it can work for business as is, depending on your field.