Dewey Decimal Classification : Tips : Classification Tips : Photo Quality: Typical example of the limitatons of a non faceted classification system: “Where should a book of photographs of the homeless/poor in Kharkiv, Ukraine, be cataloged?
The first question to ask when you are confronted with a book of photographs is: Is the focus of the work on the artistic value of the photography? In other words, does the work truly belong in the category of arts? If yes, the work belongs in 779 ; if no–if the focus of the work in this example is on the plight of the poor rather than the artistic qualities of the photographs–the work should be classed with the subject.” Using facets you could just classify under type > art > photography and under subject > people > homeless and under geography > Ukraine (you get the idea).