This book mainly focuses on defining profit models, on how many main kinds of profit models there are, how profit models can change a company, and how to tailor a profit model to the needs of a certain company. In this context, profit models are classified as fixed-income, remaining-profit and profit- sharing, admission, toll, parking, fuel and sharing fees, profit sources, customer pricing, auction, combined pricing, etc. The logic behind all these profit models will be analyzed in detail and numerous micro-cases will be introduced. All of the micro-cases discussed are the best profit model practices used by outstanding enterprises, mainly from China and the USA