There are two sources of income for this website, one is the 11 yuan for each member, and the other is the outsourcing bookstore for enterprises, which earns tens of thousands of dollars every year. Some enterprises often buy books in order to improve the quality of their employees, but the cost is higher. Green Tomato has solved this problem for these companies. In Green Tomato, there are many kinds of books and the prices are right, so many enterprises are willing to spend such a sum of money. In short, Green Tomato is a very creative platform, perhaps not very mature, but it does provide convenience for those who love books but have limited funds, and everyone should support it more.