Influencer marketing has always existed: it’s just what we know as word-of-mouth. When we need to rely on someone for a product or service suggestion, we’d probably talk with some kind of “influencer” like a friend, a familiar, a skilled person, etc. The difference is that, today, it became an actual profession and, to grow as influencer, you can attend courses and workshops. But essence though remains.
Ideally, influencers are people skilled in a particular sector. People who dedicates to reviewing products or services, sharing their opinion on Youtube or Instagram, and who have been decreed like reference point in that particular sector thanks to their popularity. It’s a revolution in marketing world that grow from below and apparently gives everyone the opportunity to become a real star.

Influencers are nothing more than people who move other people to a decision. Purchases, Likes, Followers… influencers generate people actions towards a brand.