Creative Commons is a non profit platform that allows you to "legally share your knowledge and creativity to build a more equitable, accessible, and innovative world — unlocking the full potential of the internet to drive a new era of development, growth and productivity."
Most images that you will come across on any digital platform will have a CC license that informs you the extent to which the image can be utilized. For example, whether or not it can be modified, whether or not it can be utilized for commercial purposes.
It is essential to be acquainted with Creative Commons licenses because most of the websites dealt with in this guide fall under a creative commons attribution.
Note that it is advised to use the Fair Use Checklist when you are unable to find citation guidelines for an image. In cases where a Creative Commons license or institutional restrictions are imposed on an image, follow those guidelines.