This deals with the desktop version of Autodesk Sketchbook, not the iPad version. Sketchbook is now a subscription application. Only the paid, Pro version allows importing of brushes.
My custom graphic recording brush set.
Some time ago, I created a custom brush set for Autodesk Sketchbook Pro (an older version). I’ve updated the brush set and created a video showing how to import a brush set into the application.
Download my new Graphic Recording brush set for 2015.
If you prefer the older set, it’s still available here (scroll down, it’s near the bottom of the post), and it can still be imported.
Don’t unzip the files; Sketchbook will look for a zip file when you try to import the brushes. Happy recording!