Imagine you drew a really cool picture and your friend wants to show it to their mom. But your friend's mom doesn't know that you drew the picture. So your friend says, "My friend drew this." That is like giving credit to the artist.
In writing, if you use someone else's idea or words in your work, you have to give credit to that person. You do this by citing them. This means you write their name and where you found their information, like a book or a website.
It's important to cite others because it shows that you're being honest and fair. It also gives credit to the person who came up with the idea in the first place. So think of citing as giving credit where credit is due!