Nowadays the evolution of securities markets using information technology is becoming an important issue because they make exchanges comparable and more integrated. The borders of the market that investors face are blurring. In this way there is an increasing competition among the stock exchanges worldwide and among exchanges and automated trading systems. Thus, in this book an electronic trading system for Iraq stock exchange is introduced as a step for the exchange to evolve and be able to compete with other stock exchanges around the world. The system was designed as a network application using web design techniques and protocols which makes it usable on both a local network and on the internet.