This would probably make more sense over on the microformats-discuss list. Edward - visit http://microformats.org/mailman/listinfo/microformats-discuss/ to join. I'm crossposting this over there in case this is a solved problem already... There are a bunch of links about encoding MARC data in SGML/XML here: http://xml.coverpages.org/marc.html Here's the official schema: http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd There are examples at: http://www.loc.gov/standards/marcxml/ It looks like MARCXML is pretty cryptic. The MODS or Dublin Core transformations might work better as a microformat: http://www.loc.gov/standards/marcxml/Sandburg/sandburgmods.xml http://www.loc.gov/standards/marcxml/Sandburg/sandburgdc.xml Cheers, Phil Edward Vielmetti wrote: >I'm looking for suggestions for a microformat >suitable to recommend to my library which >produces an RSS feed as a result set for >a search through its library catalog. >>hReview isn't quite right, and there's a lot >of potentially useful book metadata that >comes from a standard format (US-MARC) >and should be straightforward to map in. >>