The document discusses how to insert figures into LaTeX documents. It specifies including the graphicx package and using the \includegraphics command within a figure environment to place images. Common figure placement options for the environment like h, t, b, p are described. The document also notes that figures can be in PostScript (.ps) or Encapsulated PostScript (.eps) format, and that images can be exported or converted to these formats from programs like Mathematica, Matlab, or by using Photoshop.