Not really. Generally, ALL CAPS and italic are preferred over bold (as both are specially cut for that, and keep the contrast roughly the same), but bold is not

Not really. Generally, ALL CAPS and italic are preferred over bold (as both are specially cut for that, and keep the contrast roughly the same), but bold is not bad either (and for sans serif, always choose bold over italic). Compare with: http://practicaltypography.com/bold-or-italic.html http://practicaltypography.com/bold-or-italic.html What you definitely shouldn’t do is underlining, though: http://practicaltypography.com/underlining.html http://practicaltypography.com/underlining.html