on Jane Friedman site:
An influencer is an individual who has built a reputation for his or her knowledge and expertise on a particular topic and likely uses social media to get that message across.
Pat Flynn is a notable influencer in the entrepreneur and podcaster niche, best known for Smart Passive Income. People gravitate toward him because he’s an expert in his field (who happens to have a large following: very important).
People listen to influencers’ recommendations because they have credibility. You trust them.
Think of some people you follow and trust. Chances are that’s an influencer.
Here are some of my favorite influencers in the book world: