Do We Need A Different Way Of Categorizing Books?

A category only exists in relation to other categories, similarly constituted. You would need to establish a number of other clearly defined hierarchies of value, or centers of interest, generating distinct, or at least recognizable, types of plot and character interaction. For example, stories in which good and evil are absolute, not subordinated to the community, which in this case would matter only in so far as it fosters goodness, not vice versa. – New York Review of Books