You can make a lot of things with the Google Chart API:
Some things that look like charts...
And some that don't...
Open up a browser window and copy the following URL into the address bar:
Tip: Try changing the text from "World" to your name.
How Do I Start?
To use this API, you should have a little HTML experience; a little patience to read the documentation; and a little persistence to keep trying if your first charts don't look as you expect them to.