Once you log into the dashboard, you’ll see on the left hand side, a tab called “Campaigns”. Click on that and it will take you to a list of your current campaigns. There will be a button named “+Add New” at the top of the campaign list, click on that and it opens a popup. Fill out the information in the popup, and hit the button “Add New Campaign” and you're done!
Click here to see a video walkthrough and learn more about campaigns.