Mission Control provides a vantage point where you have a clear view of everything that’s running on your Mac. From there, minimal effort is needed to find the window you want and bring it to the foreground, even if it’s one among dozens, saving you the hassle of moving others out of the way or pressing a keyboard shortcut to cycle through them.
Mission Control incorporates another feature, Spaces (known as virtual desktops in Windows and Linux), that further keeps things organised. Similar to how you might position tools around a physical desk, apps can be compartmentalised in whatever way makes sense to you. You might put communications apps such as Mail and FaceTime in one space, and Pages and Safari in another to take notes as you research a subject. To start using these helpful tools, first you need to know at least one way to enter Mission Control.