In this article you will learn the difference between email templates and email campaigns. 

The email template is a preset layout you build your campaign on. It can be useful because it saves you time when creating the emails for your subscribers. If you plan to send the same layout more than once in the future, you might consider creating an email template. 

An email campaign is the email message you write and design, and send to your specific contact(s) or a list. You can edit the template layout you already have to edit text, images, backgrounds, to mention a few.