Visuals play a very important role in multiple aspects of social media.

Capture Short Attention Spans – Stand Out From the Crowd – Enhance Your Social Marketing Message
Trying to succeed on social media is a little bit trying to get your voice heard in a room filled with people speaking loudly and all fighting for attention.
That’s pretty much precisely what social media is – a platform where a whole lot of individuals and companies will fight for the attention of the masses and do whatever they can to stand out from the crowd.