Content: Chapters: 1 - Overview of Thai culture. 2 - Thai folk knowledge on flowers that grow in the Northwest of Vietnam. The role of flowers in Thai cuisine. Thai flowers in Spring festivals of the Thai people. Thai flowers in Thai ethic minority's folklore. 3 - Folk knowledge about Thai stairs & floors. Overview. The position & role of stairs in architecture of house on stilt and in the life of Thai people. Introduction of types of stairs & how to make stairs of Thai stilt houses. The stairs in Thai folklore. The stairs in some Thai customs and in Thai beliefs. Comments on the stairs in Thai stilt houses.