The boss wants me to design an ad$!$ Being an intern, I$$ve never done this before. What are some things I should keep in mind?

Put as much text as you can in the ad without it looking cluttered. The more information included, the better.

Don$$t use too small of a font and keep paragraphs broken up$.$ Also, no more than $40$ characters in a line.

Write in all caps so it$$s easier to read. Also use columns.