Ms. Harrar? How do I change the font style and size of my essay? Select the font type: Time New Roman Select the font size: 12 You can see the difference from the font that was not yet changed. To change the font type to Times New Roman and font size to 12, select ALL of the text Select Times New Roman, size 12 High five yourself! You just make your font style and size appropriate for an MLA formatted essay.