Assets -> Notebooks and either click on the sharing button located on the right end of the notebook card in the list, or click on the notebook card and navigate to the Sharing tab. The added member will appear in the notebook members list, where you will be able to change the access policy or revoke access from the user. Users get notified by email when someone shares a notebook with them.[email protected] if you wish your username to be excluded from auto-complete.Overview is shareable, and another user can view it on their browser if they have access to it. URLs of public notebooks can be viewed by users, even if they are not logged in.