https://www.creativelive.com/class/advanced-adjustment-tips-tricks-in-adobe-photoshop-ben-willmore/lessons/automated-color-correction-and-matching

Are you looking to up your adjustment skills so you can be more effective and efficient by utilizing a wider range of advanced features? Do you run into features in Photoshop that you do not utilize such as Knockout Deep, Knockout Shallow, Pass Through mode and wonder how you could utilize them? Then this class is for you.
Ben has been pushing Photoshop to its limits for over 30 years. Learn his best tips and tricks for getting the most out of Photoshop’s adjustments.
You’ll be able to tackle a much wider range of challenges once you expand the range of features you use on a daily basis. You’ll also reduce guesswork while increasing the precision of your adjustments.