On OneNote for iPad or iPhone, you can open notebooks that have been shared with you. Tap More Notebooks . On iPad: If you're already on a page in a notebook, tap until you see the list of notebooks, and then on the bottom of the notebook list, tap More Notebooks . You might have to flick down to see More Notebooks . On iPhone : If you're already on a page in a notebook, tap until you see the list of notebooks, and then on the bottom of the notebooks list, tap More Notebooks .You might have to flick down to see More Notebooks . Find the notebook that has been shared with you. It will be marked, "Shared by," as shown in the following example: ...