Researcher Nguyen Thi Thu Hoa is a lover of folk culture. Over the past 5 years, she has researched and explored the following folk painting genres: Kim Hoang, Hang Trong, Dong Ho, Hue glass paintings and various types of do the paintings. In 2022, she received the Bui Xuan Phai Award - For the Love of Hanoi with the book "Kim Hoang Folk Paintings". Since then, she has delved into the topic of researching Vietnamese folk customs: from fertility beliefs to fire gods, and in May 2024, she continued to publish a research work on the custom of human sacrifice in Vietnamese folk beliefs. Author Nguyen Thi Thu Hoa said: “About 3 years ago, there was a controversy on social networks about whether or not to abolish the pig-slaughtering festival in Nem Thuong. Since then, I have always researched the custom of sacrifice, related to the sacrifice of animal blood. In early 2024, during the Lunar New Year, I felt mature enough in my research on sacrifice in Vietnam, so I was determined to write a book on Human Sacrifice in Vietnamese Folk Beliefs. Research on human sacrifice in Vietnam can only be based on archaeological artifacts, historical records, and remnants of human sacrifice in folk beliefs. Although the practice of savage human sacrifice has almost disappeared, there are still remnants today and many years later. This is probably the fastest book to be completed, in just 3 months, because perhaps I love this research so much. I also hope that through my research, readers can have a different perspective on the custom of sacrificing humans and slaughtering pigs.