KML is a geographic data markup language for display in programs such as Google Earth or Microsoft Virtual Earth. With its help, you can present the most heterogeneous information on the three-dimensional panorama of the Earth - from a photo report on your journey through Europe to a dynamic picture of the spread of bird flu or continental drift. The possibilities are limited only by your imagination! The book describes in detail, using specific examples, the capabilities of KML 2.2, and also provides a reference book of all language elements.