This is a book about the Singapore economy as seen through an econometric lens. Accordingly, we introduce the reader in this chapter first to the economy of Singapore, then to the ESU01 model from which we obtain our econometric perspective, and finally to the book itself. The aim is to provide the economic and technical background for the subsequent material. At the end of the chapter, we have included a summary flowchart of the model which will be useful for keeping track of the big picture.