Microsoft has published a number of infographics to help give some visual guidance to various aspects of the Azure cloud. One of these infographics is an Azure API Management infographic that summarizes how to publish APIs to partners, employees, and 3rd party developers securely and at scale.
You can download this infographic from the following URL:
https://build5nines.com/wp-content/uploads/2016/06/azureinfographic_apimanagement2.png