In the world of marketing, there are two main types of "people": brands and consumers (users). Just like definition of marketing, which is the brand to pass the right information to the right consumers through the right channels. What is KOL? As social media becomes one of the most popular channels to promote brands and reach the target audience, the third type of "people" stands out. They are KOL (Key Opinion Leader). KOL, Key Opinion Leader, are experts in a certain field, and they have their own fans, so many brands love to cooperate with KOL to promote new products and reach more target audience. For example, one of my favorite makeup KOL on social media is Deepica Mutyala. She has 226k followers. Her makeup tutorials are very popular and fun to watch. Therefore, many cosmetics brands cooperate with her to promote the new makeup products. For example, Deepica always teach how to use lipstick to make beautiful and shin...