Espionage is designed to work seamlessly with the Finder while staying out of your way, however, sometimes it's necessary to let the user know when something important happened. For this reason Espionage has built-in notifications.
Notifications are tiny "notes" that usually appear in the upper-right-hand corner of the screen. They will automatically disappear after a short delay unless they really require your attention, in which case you can click to dismiss them. They come in three varieties:
For those who would prefer to use Growl for notifications, Espionage lets you do just that! Simply go into the notification preferences and click the checkbox to use Growl.