Hello all, I'm trying to plan the cataloguing requirements for our Esperanto library, and since we don't have to follow any other library's standards, we don't want to type more that strictly needed. My goal is cataloguing according to the information our own users will be able to retrieve from the Koha OPAC, no more, no less. However, the mapping of MARC21 fields to Advanced Search Options seems to be undocumented. For example, what field is used to search by language or publisher location? Why the "Content" option doesn't match character 33 of field 008? In the search field, what's the exact meaning of "Subject and broader terms", "Subject and narrower terms", "Subject and related terms", and "Curriculum"? Where are you supposed to input that when cataloguing? Sorry if my questions are naive, I'm just an amateur sysad and amateur librarian working in my spare time for a nonprofit. Rubén Fernández