One of the best tools to do this is Interactive Data Language (IDL), programming and visualization environment that facilitates numerical modeling, data analysis, and image processing. High levels of IDL language and strong graphics capabilities allow users to write more flexible programs much faster than is possible with other programming languages. An Introduction to Programming with IDL enables students new to programming, as well as those who have experience in other programming languages, to rapidly take advantage of IDL's capabilities: fast, interactive performance; array syntax; dynamic data typing, and a built-in graphics.