As most of us have experienced at least once in our lives, desktops can sometimes turn into a jungle of icons, documents and other files chaotically piled up on top of each other. Luckily, Apple provided us with a useful tool called Stacks that will help you quickly arrange your desktop with least amount of branching and redundancy. So what is Stacks? Stacks is a folder conveniently placed in your dock, where you can place all related documents or apps for quick access and organization. When you click on your Stack, it springs open in a column or a grid, displaying all the files in that particular folder.
► To create a Stack folder, simply drag a folder from the desktop or Finder to the right of your dock’s dashed line and a Stacks icon will appear.
While Stacks folders will automatically switch from a fan view to a grid view when that particular folder reaches a certain number of files, you can manually switch the view by right-clicking the Stacks folder. This will bring up a contextual menu from which you can choose Fan, Grid, List or Automatic options.