How to | Add Text outside the Plot Area
Whether for simple annotation or to produce publication-quality plots, adding text outside the area of plots is one of many customization features that Mathematica provides to tailor plots to your needs.
Selected examples from the video:
To add text outside the area of a plot or graphic, first click the plot to make the resize handles visible.
Using Ctrl+drag on Windows, or command+drag on Macintosh, drag a resize handle to add space for text:
Bring up the palette by selecting it from the menu:
Click on the palette:
The cursor will appear with a small "T", indicating that you can add text. Click where you want to add text:
Type in your text:
You can also add other annotations, such as arrows, using tools from the palette to draw on top of the graphic.