Very often a picture can present an idea in a way that sums up what the presenter is saying. These are sources of images, video, and music that can be used in presentations easily thanks to being either within the Public Domain or having Creative Commons licensing.
Be sure that you cite them.
Copyright is very important! When using images from the web, it's vital to make sure you aren't violating copyright law. The easiest way to do that is to use images that are either labeled with a Creative Commons license or available in the public domain. Always follow citation and attribution requirements for the image according to the license. See our Copyright Libguide for more information on this topic.
The default Powerpoint or Google Slide setups may not always work for your presentation. Some other sources you could try are: