This is a great pocket sized notebook for taking notes. I find it very useful for brainstorming and writing things down. Most of us have smartphones, but I find that it's easier to scribble into a notebook. It's a good way to track things and make calculations, and be able to keep those calculations. I do a lot of inventory work, so I'm always writing things down and crossing them out, and putting numbers next to items. It is a good quality notebook, with a rubber band to keep the book closed. Fits perfectly into my jacket pocket. It is a bit expensive though!