"No matter your area of expertise, chances are you've worked with photographs. Web and print designers alike are no strangers to the magnificence that can be captured in photos.
It's what we build our designs on top of and with, whether they're the focus of just a background piece. And as the time passes and job titles become more expansive, we designers become the people who have to be able to edit images."
Here is a detailed insight about what you should have, and should be using in your Photoshop toolkit.