The habits of Vietnamese people in general, the habits of people in the Northern Delta region in particular are formed based on the geographical, economic, political and cultural conditions of the region. Over thousands of years of development, habits have changed to adapt to new conditions. The book by Nguyen Quang Khai helps readers see habits in some areas of social life and classes and ages in the Northern Delta region. Issues studied by the author include: culinary habits; selecting residence places and housing construction; costume; how to move and socialize; how to express faith in religion, belief ...