Ceramic ware has been produced in many types for various uses and has become an inseparable part of daily human life since prehistoric times. In many archaeological sites in Thailand, a large number and variety of ceramic remains have been discovered. According to their sources of manufacture, ceramics unearthed in Thailand are classified into two main groups: those produced in Thailand and those produced in foreign countries. With the skills of ancient Thai artisans and the abundant raw materials available in the region, the ceramics excavated were well made. They were decorated using a wide range of techniques and designs. So they are ranked among the finest in the world and its quality is remarkably distinctive.