The principle of generating dynamic images in PHP
How to choose a specific image format (e.g. JPG, PNG, GIF)
Various ways of using the generated image, streaming it back to the browser, sending it to a file or getting hold of the image handle for further post processing
How to specify fonts (both bit-mapped and TTF) in JpGraph
How to extend JpGraph with your own fonts
How to work with Cyrillic fonts
How to specify colors in JpGraph
List all available named colors in JpGraph
How to effectively use the built in cache schema in JpGraph