The Adjustment Brush makes Lightroom to what it really is - a powerful image editing tool that will boost your photography to the next level. You don´t have to leave Lightroom to edit in photoshop for most of your work. Using the Adjustment Brush, you will continue working on the RAW image and you can undo or change your settings whenever you want.
Here is the link to the Lightroom keyboard shortcuts, mentioned in the tutorial. It will speed up your workflow in Lightroom in general and in particular with the adjustment brush.
http://photo1x1.com/pdf/lightroom-key...
If you haven´t already watched our first two lightroom classes, have a look at:
Lightroom Basic Tab tutorial part I:
• Easy Lightroom Tutorial 2019 | Basic Tab P...