You can add more users to access your projects in a variety of ways. Simply click the My Account button at the top right, and select Team. Click New Invitation to add clients, editors and full admins. Editors will only have access to projects they've been given permission to edit, while admins can access all projects, analytics, and add new users.
Clients won't have access to edit projects, but they can check in our published projects ton review progress, and also analytics to see how their projects are performing.