Accessing your notebooks
Once you start creating notebooks and populating them, you may want to access those notebooks and all that information on other devices. You can open notebooks on other devices. When we refer to other devices, we are talking about how you can work with OneNote on not only your computer but also your smartphone or tablet. Opening a notebook in OneNote on another device means that OneNote will sync that notebook with that device. It is like adding an email account to your mail software, which will allow you to see these emails from that device every time you need to. In general, there is no need to close a notebook unless you are permanently done with it, or if you need space on your device.
When you use OneNote on these other devices, you will need to also open up the notebooks you want to work with on those devices. For example, if you create three new notebooks from your desktop computer that are stored in the cloud, then you can access those notebooks...