Photoshop is the standard image editing tool available today. It is because; the work is easier andfaster than other software. You can do more than just drawing and editing. So before you dive into Photoshop, learn about some basic tools thatit has.
Layer panel: layers as the name says, separates the elements of the image.
Brush Panel: this is an extension of the brush tool. You can configure brushes with varying shapes and sizes, and orient it to work at different aspects of work.
Layer Mask: these masks allow you to hide specific layers, which might not be needed at the moment.