Retro style posters designs with vintage look. They said retro never dies or old is gold. They are right actually. Very trendy these days. Check these stunning and eye-catching retro style posters. Retro is a term used to describe, denote or classify culturally outdated or aged trends, modes, or fashions, from the overall postmodern past, but have since that time become functionally or superficially the norm once again.