Step 1: In OneNote for Windows 10, open the notebook you want to share.
Step 2: In the upper right corner of the app window, click or tap Share.
Step 3: In the drop-down box on the Share task pane that opens, select This notebook.
Step 4: Under Email invitation, type one or more email addresses of the people with whom you want to share the current notebook.
Step 5: In the drop-down box, select Can edit if you want selected participants to be able to change your notes, otherwise select Can view.
Step 6: Click or tap Share.