Kelvin Smith Library
Cite*: to mention something as a reason or an example, or in order to support what you are saying (Oxford Learner's Dictionaries)
Paraphrase: a statement that expresses something that somebody has written or said using different words, especially in order to make it easier to understand (Oxford Learner's Dictionaries)
Quote: to repeat the exact words that another person has said or written (Oxford Learner's Dictionaries)
* You do not need to cite your source if the information is considered as "common knowledge." Common knowledge is any information that the average, educated reader would accept as reliable without having to look it up. However, there is no clear boundary on what is considered as common knowledge.
Best practice to avoid plagiarism
Cite or ask permission for images found on the Internet
Use images based on their usage rights
Use images with various usage rights:
A work in the public domain is not protected by intellectual property law. The public owns these works, not an individual author or artist. You can freely use a public domain work/image without obtaining permission.
Selected public domain image websites:
Creative Commons is a non-profit organization that "provides free, easy-to-use copyright licenses to make a simple and standardized way to give the public permission to share and use" an author's creative work with a Creative Commons license chosen by the author. Read the license of each image to decide.
Selected Creative Commons platforms:
Find images with various usage rights: