Five Reasonable People sets out Way of life theory (WOLT) which explains the structure of morality. It applies the deductive method of the natural sciences to show there are five possible moral stances, five types of people and organisations, five ways of life.
The theory is straightforward; anyone can work it out; it is testable and falsifiable. The five ways are readily recognisable and illustrative examples are plentiful.
The first chapters show why there are five types and what they look like and rest of the book applies the theory to understanding everything social, from ordinary social interaction to film and fiction and serious matters such as freedom, religion and power.