Mathematica allows graphics to appear anywhere in notebooks, including inline in text or other expressions. You can specify how the graphics should be placed and rendered, and you can immediately modify any graphics option in place, or programmatically define it centrally in a stylesheet.
Drag — resize a graphic that appears anywhere
— change properties of a graphic
ImageSizeMultipliers — how much to shrink graphics when they appear inline
BaselinePosition — how to align with respect to surrounding text