One of the most important things to master in Photoshop, is selecting objects or persons, and then cutting them out, so you can replace the background or move them to another image.

I will take you from the most basic tools, like the magic wand and lasso tool, to the more advanced tools like the pen tool and layer masks. You can follow along, by downloading the images used, and try it yourself, before you go on to the next tool.

More info - https://skl.sh/2MfvELv