Everyone is aware that there are major differences between Asian and Western cultures.  Even Asian cultures themselves are also quite different. Cultural differences are evident very deep in the brain, challenging a commonsense notion that culture is skin deep. People in different cultures make different assumptions about the people around them. Despite this fact, people from every nation are often frustrated and culturally shocked by the extent of the differences.  But the more you learn and become aware of them, the better you will be able to cope as you go about your life and work especially, as far as this module is concerned, when you have to speak with other people from other nations in ASEAN. In this module the distinctive cultural awareness of ten countries in ASEAN will be described briefly to show how different they are, and to prepare ourselves for the differences. However, in some countries the backgrounds of the nations have to be explained; so we know the reasons behind some of their cultures.