By clicking an icon and then choosing File → Get Info, you open an important window like the one shown in Figure 2-11. It's a collapsible, multi-panel screen that provides a wealth of information about a highlighted icon. For example:
For a disk icon, you get statistics about its capacity and how much of it is full.
For a document icon, you see when it was created and modified, and what programs it "belongs" to.
For an alias, you learn the location of the actual icon it refers to.