above document classes, specify a name and (optionally) a signature, and
then proceed with writing the letter as if it were a standard letter.
+The MIT logo is included as an encapsulated PostScript file (EPS) and,
+as a result, will only display correctly using dvips. Many people now
+use pdflatex intead. pdflatex will require that the logo be converted
+from EPS to PDF which can be done using ImageMagick or several other
+programs.
+
\closing{Sincerely}
\end{letter}