All the features you need to manage your account and its users can be found in the Management menu (previously called Admin menu).
This menu also contains a number of administrative features to support your marketing activities.
As a quick reminder, here is the onboarding video about Admin & Account Best Practices:
Account and user management
For Account Owners, there are two options available for managing users and configuring the account security:
User profiles
Regular users can view and edit their user profile via the drop-down in the top right corner by clicking the icon of their account:
Contact management
The following features will help you keep your contact database healthy:
While these will help you make sure the right contacts get the right emails:
Campaign administration
There are also assorted features relating to email campaigns and content: