A story here about a US public library using topics as opposed to Dewey.
OK as far as it goes. But Dewey has the advantage of being a ‘universal’ system, albeit one with many faults. Categories can, and most likely will, vary from library to library.
Signs etc can be used to identify the ‘topics’ that DDC builds up anyways. OPAC display modifications can be used to point people to where 641.5 is.
This is another example of ‘either/or’ thinking. DDC can be used alongside categories, signing etc. There is also an implied judgement on people; that they can’t cope with DDC. Maybe it’s because I grew up with it, but it’s never seemed that hard to me.
Still, if people were to consistently ask for topic arrangements over DDC (or LC) then it would be something to look at.
And who will decide what the topics are and what books go where? 😉