How do I Install a Photoshop Brush?
In order to use Photoshop brushes, you must have Adobe Photoshop or Photoshop Elements software.
Open your Photoshop program. Make sure the brush tool is selected. You’ll need to click on the brush tool type (at the top) you’re using. A popup menu will appear (this is where you normally select the brush you want to use). To load new brushes, click on the small triangular arrow on the menu, and scroll down and click “Load Brushes.” Note the location that opens. You will need to copy and paste your brush file (.abr file) to this location and click “Load.”
For more details on how to work with Photoshop brushes, visit this tutorial.