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Image charts are designed to allow nonprogrammers with no JavaScript knowledge to create impressive-looking chart images. If you know a little HTML, you can use image charts. In contrast to the interactive charts API, there is no need to include any special JavaScript libraries, as the chart is requested from the Google chart servers with a regular URL request. Figure 8-5 shows the results of the following HTML page:
<html>
<body>
<img src = 'https://chart.googleapis.com/chart?
cht=p3&chd=t:60,40&chs=500x250&chl=Hello|World'/>
</body>
</html>