YouTube is awash with people who like to present themselves as Photoshop experts. It takes time to sort the out the good ones from the wannabes, so from time to time we will post some of the better ones.
Unmesh Dinda is a young man with a pleasant personality and a good presentation technique. He posts regularly and has amassed over 1,000,000 subscribers - that’s an indication that he is good value and unlike some, he is not selling anything. Typically his presentations deal with the complete process of editing an image with multiple layers and a variety of techniques. He keeps your attention by working quickly, so perhaps he is not for the absolute beginner.
Here is a sample. If you enjoy it you can click the subscribe button.