Clicking the links below will lead you to important information about 2D bubble charts:
About 2D Bubble Charts — Gives you a brief description of 2D bubble charts, and explains why you would want to use them.
Working with Bubble Chart Data — Provides information on the type of data necessary to generate bubble charts (e.g., number of bars, and spacing of points), as well as how data is mapped to it.
2D Bubble Chart-Specific Properties — Provides a list of all the properties that are specific to 2D bubble charts. These properties allow you to customize your chart.