Here is a chart of the default brushes that come with Photoshop so that you can have an easy reference of what the brushes look like. This is a CS6 version with some CC updates, but I did this a while back so I may have missed a couple. This is also a good way to create a chart for any of your brushes that you have created as well... saves a lot of loading and deleting of brushes.
Photoshop Brush Chart