Author/Publisher both are AEM instances, started with different special
run modes (author, publish) to differentiate their purpose. For me, as
an author writes, a publisher gets those writings out where people can
read them. AEM Instance started with publish run mode restricts several
capabilities which author can do, like workflow. In a real setup, we do
not grant direct access to publish environments to anyone (be it
author/users). So all content authoring is done in author mode, and the
websi...