How to Use the Adobe Illustrator Type Tools
From Eric Miller, former About.com Guide
There are several tools for creating type, all found on the Illustrator toolbar, and each with a different function. The tools are grouped as one button on the toolbar; to access them, hold down the left mouse button on the current type tool. To practice with this and the other tools, create a blank Illustrator document. Before using the tools, open the “character” and “paragraph” palettes by going to the Window > Type menu. These palettes will allow you to format the text you create.