Hi, all! I just had a library ask me about how they could best search for a specific Dewey number (and not as part of a call number, but on it's own). After a bit of head-scratching I discovered that searching for the Dewey-number as a subject gave good results (e.g. /cgi-bin/koha/catalogue/search.pl?idx=su&q=355&op=and&idx=kw&op=and&idx=kw&sort_by=relevance). Now the trouble is I was unable to leave well enough alone, and started trying to figure out why Dewey is included in the su index. And I'm still scratching my head... Normally I would expect to find the answer in one of the following files, but this seems like a dead end: etc/zebradb/marc_defs/normarc/biblios/record.abs melm 082 Dewey-classification:w,Dewey-classification:s etc/zebradb/biblios/etc/bib1.att att 13 Dewey-classification etc/zebradb/ccl.properties #Classification-Dewey 13 A classification number from 082 # the Dewey Decimal # Classification, developed by # Melvyl Dewey. #Dewey-classification 1=13 I have tried also tried grep'ing throught the source for Dewey-classification, with meager results (the mention in Search.pm is just in a list of "available indexes"): C4/Search.pm: 'Dewey-classification', etc/zebradb/biblios/etc/bib1.att:att 13 Dewey-classification etc/zebradb/ccl.properties:#Dewey-classification 1=13 etc/zebradb/marc_defs/unimarc/biblios/record.abs:melm 676$a Dewey-classification:w,Dewey-classification:s etc/zebradb/marc_defs/normarc/biblios/record.abs:melm 082 Dewey-classification:w,Dewey-classification:s etc/zebradb/marc_defs/marc21/biblios/record.abs:melm 082 Dewey-classification:w,Dewey-classification:s koha-tmpl/opac-tmpl/prog/en/modules/opac-browser.tt: <a href="opac-search.pl?q=Dewey-classification:[% LEVEL_LOO.classification |uri %]">[% LEVEL_LOO.description |html %]</a> koha-tmpl/opac-tmpl/prog/nb-NO/modules/opac-browser.tt: <a href="opac-search.pl?q=Dewey-classification:[% LEVEL_LOO.classification |uri %]">[% LEVEL_LOO.description |html %]</a> If anyone could shed some light on why Dewey-numbers are available in the su index I would be eternally grateful! Best regards, Magnus Enger libriotech.no