This is a LaTeX reproduction of the current Illinois letterhead (based on a project by Luke Olson).
This is the “space-saving” format with "The Grainger College of Engineering" branding and the block I, designed by Colin Robertson for the Department of Computer Science.
The official letterhead appears to use the Gotham font. A sufficiently similar freely available alternative is the Montserrat font, which is used here and is included in TexLive.
To compose a letter, use template.tex, which includes the logo and font style through illinois.tex, as a guide.
