Brush Type Key
Each brush has a one or two letter key code in it’s name. These help identify the brush type and are as follows:
H (Cross Hatch)
NM (Natural Media – This one covers a lot of brushes that don’t fit into other categories)
OI (Oil Impasto)
Photoshop Brush Strokes Guide
Though I highly recommend you browse them online, you can download the PDF brush stroke browser as an offline reference.
Online Brush Stroke Reference Guide
The same brush strokes reference guide images from the downloadable guide but viewable online on one web page. Move your mouse or finger around the image to view a zoomed in detail of brush strokes of every GrutBrush.
Live Brush-Stroke Video Previews
You can also download this as a PDF by clicking here
More ways to browse and explore brushes are coming soon! Charts, animated catalog, and maybe even an app at some point.