While a bit dated today (it was originally published in 1974), the first part of this book, detailing our history of food from the colonists on, was fairly interesting; most of this information is probably still mostly accurate. And while the authors were right that the march of convenience foods would continue, and processed items make up a large part of the American diet, their predictions about multicultural fare were NOT true. There are many great family-owned ethnic restaurants throughout the United States, and families do make attempts to try this fare at home instead of just gazing at cookbooks. I'm sure the authors could not have predicted the rise in television cooking channels and of course, the internet plays a role, as well.
It would have been interesting to see an updated version but unfortunately, I believe both authors are now deceased.