 The influencer marketing industry is on track to be worth up to $15 billion by 2022, up from as much as $8 billion in 2019, according to Business Insider Intelligence estimates, based on Mediakix data.Self-branding, also known as personal branding, describes the development of a public image for commercial gain or social or cultural capital.The rise of social media has been exploited by individuals seeking personal fame and product sales.