I picked this up to see whether I wanted to cull it from my giant cookbook collection, and it turns out that no, I do not, even though the style is basically the polar opposite of how we eat. It's like a snapshot of ideas about food in 1970, which makes it super interesting as a historical object.
The trend is definitely toward the super-heavy. For instance, the salad section has subsections for various kinds of fish, poultry, and meat; many of the salads therein are basically meat napped in homemade mayonnaise, often with additional mayonnaise for garnish. This sounds more than horrible if the mayonnaise you know is shelf-stable store-bought whipped hydrogenated oil. But then you think about what this salad could have been with a freshly-made emulsion of egg yolk and olive oil, and it's suddenly a believable dish.
I found the section on bacon-wrapped cocktail appetizers especially interesting, considering the recent ZOMG BACON EVERYTHING trends especially since Beard cites the bathtub gin parties of the 1920s as their origin. There are bacon-wrapped water chestnuts, bacon-wrapped jalapeno peppers, etc. But then you realize that the first recipe is for bacon-wrapped crackers. Crackers? Yes. And it really is the 1920s, and bacon and crackers really are a believable dinner, gin optional.
I'm not going to be cooking from it very much, but that's ok. This cookbook is for reading.