Worth a thousand words
Using an image
Adding it to an article
Review of what you've learned
To use an image (or video, or audio file) on Wikipedia, it must first be uploaded. However, there are some important restrictions on what images Wikipedia can accept. This tutorial introduces you to the relevant rules and guidelines.
To upload images, you will need to register an account. It's quick and free, and has many benefits.
Hopefully, your image will be improving an article very soon!