Dear Colleagues, Bear with me, this message is kind of long. I just ran the "List of all normalized ISBNs" report found at <https://wiki.koha-community.org/wiki/SQL_Reports_Library#List_of_all_normalized_ISBNs>. I then took the results of this report to search for the titles to which the ISBNs belong. When I search for the ISBNs using the ISBN filter on the the staff interface of Koha as well as the OPAC interface, Koha could not find most of the ISBNs; however, when I run a keyword search for the ISBNs, I find many more of them. Why? My current theory is that the ISBN filter search cannot reconcile the normalized ISBN which the "List of all normalized ISBNs" report produces. My theory is more of a "facts which support the theory" kind of theory, so I could be completely off on it. Your thoughts? TIA, Christopher Davis, MLS Systems & E-Services Librarian Uintah County Library cgdavis@uintah.utah.gov (435) 789-0091 ext.261 uintahlibrary.org basinlibraries.org facebook.com/uintahcountylibrary instagram.com/uintahcountylibrary