Vietnam: Journeys of Body, Mind, and Spirit is intended as an undergraduate textbook, a kind of consensus depiction of the ethnic and cultural diversity of Vietnam. And it's okay, if burdened with a lot of facile cruft, and making the tragic mistake of putting the best chapters at the end.
I'm not an anthropologist (though I am married to one), and a great ethnography is both a descriptive record and a bridge to a understanding different modes of being human. Not every book can be The Hold Life Has, but Journeys sidesteps some major issues. Working backwards from the present of 2003, when the book was published, Vietnam is a developing country dealing with emergence into global markets, especially competing with China on light industrial manufacturing, and undergoing market reform from a strictly Marxist planned economy of unified Vietnam. And before that, you have the decades long Indochina Wars, against France, the United States, China, and Cambodia, and then the period of colonial occupation, and the development of an independent, pre-modern Vietnam which exists in conversation with Chinese cultural hegemony and Indian influences, particularly Buddhism.
So the question, "What is Vietnam like now?" is inextricably tied up in the politics of globalization and Marxism, and since this is an official collaboration from the Vietnamese Museum of Ethnology, the researchers can't say anything particularly provocative. The early chapters are taken up with a tour through the lunisolar calendar and the major Tet and harvest festivals, along with tours of market towns developing as part of the tourist trade, and then a discussion of marriages and funerals.
The book only gets interesting towards the end, with a description of the Gia Festival, a mock battle commemorating a local hero from the 6th century named Ly Phuc Man, who has been elevated to the status of the god. Interestingly, the festival was suppressed due to war and official disapproval from 1944 to 1990, and was reconstructed based on an ethnography done in 1937. The last chapter, on shamanic guides, is also an interesting look at a unique practice, though I'm doubtful of the centrality of shamans to mainstream Vietnamese culture.