I think anyone into eating natural foods should be a big fan of weeds. They can be an abundant nutrition source, and for whatever reason they haven't lended themselves to commercial agriculture. Most of the time this reason is difficulty to harvest or perhaps very short shelf life.
This author is the first, perhaps only, weed advocate for the farming community. I wonder what he would think about the current agriculture revolutions, here, the UK, and in Australia?
One of my favorite points in chapter 6 is how weeds seeds can be used as a cover crop and as a natural, free green manure source. Maybe this could be a good technique for the South?
Regardless, it's a thought-provoking read.