Tan Hai Tat is a trainer with almost 20 years of experience in IT training. He provides training on various online money making concepts such as setting up a web hosting business, using blogs to make money, and setting up websites to sell products. The training covers topics like affiliate programs, content management systems, blogging, and selling products online or through mobile apps. The document provides information on tools and websites that can be used to implement some of these online money making strategies.