Help:Introduction to uploading images/3
Using an image
Occasionally, having a free image for a particular subject may not be possible. Therefore, the English Wikipedia allows a limited amount of non-free content in specific circumstances. Examples include cover art for books, music and video games, corporate logos, and screenshots of web pages or software. The legal basis for this is the US concept of fair use, although in fact Wikipedia's criteria are stricter than this to keep the amount of non-free content to a minimum.
The full requirements for non-free content can be found at Wikipedia:Non-free content criteria. In summary, a non-free image may be kept only if all of these conditions are met:
The image must also have on its description page:
The easiest method of uploading a non-free image is Wikipedia's File Upload Wizard, which will help you add all the required information. A link to the File Upload Wizard can be found under "Tools" at the left of the screen.