How Do You Load Brushes In Photoshop?
http://www.designbrushes.com/Photoshop-Brush-Usage-FAQ
Also check out Design Brushes website for huge collection of free Photoshop brushes for download.
The default brushes that come with Photoshop are fine. However, many people don’t realize how many other brushes they could be using. Luckily, changing brushes is quick and easy. With a file open in Adobe Photoshop, choose the paintbrush tool from your tool bar. Up at the top of your screen, the paintbrush control bar pops up. Click on the downward pointing arrow next to the brush size (as pictured). A menu pops up. Look over to the right of that menu. You will see a small arrow in a circle. Click on that arrow. Another menu pops up. Here you will see a bunch of choices relating to brushes. Select any of the brush options at the bottom of the list, and choose okay. Now your new brushes are loaded.