The AdWords campaign management page can be customized so that you are only looking at data of interest to you. One of the more basic features is viewing or hiding paused or deleted items. For example, if you have a lot of campaigns you have been testing, you may choose to hide deleted or paused campaigns so that you can focus on just the campaigns you are currently running.
Before you can use this feature, you will need to have a few campaigns, keywords, or ads in your account. Some of them should be active while others can be paused or deleted.