This is both a library MARC structure issue and a Koha data structure issue: I'm a bit confused about the normal practice concerning a numbered series of books information (e.g. Babysitter's Club) I pretty well completed the transition from Follett to Koha 3.4 on Ubuntu and am ready to begin the new school year on August 15. I discovered the problem that the imported data from Follett regarding series information were different from standard info on a Z3950 search. The default Books, Booklets, Workbooks framework does not have the 490 as default but has 440, with a lock on subfield a. I kept my Follett data into 440, but am not able to edit the existing biblios in that framework, tab 4. (I have not set up any authorities). Newly catalogued books (only about 20) imported from a Z3950 search import the series info into 490. The biblio editing tab 4 displays it fine. Since they were brought in using the existing Book framework, the serial field and seriestitle in the biblio field remains blank. Puzzled, I discovered that 440 is now obsolete in the US. In the existing Follett to Koha migrations that were documented, this issue had not been brought up before. So I have changed the framework for 490 to now appear by default (setting to the advanced constraints "hidden" to 0). I've mapped MARC to Koha to 490 for serial info. Getting this string <datafield tag="440" ind1=" " ind2="0"> to read <datafield tag="490" ind1=" " ind2="1"> is just a minor SQL Update Replace() query in the marcxml field in the biblioitems table. Getting the content of the now 490a subfield and 490v subfield (the only 440/490 fields in use) into the serial and seriestitle fields is still a problem. Am I on the right track? Do I have to change anything in the marc field of the biblioitems table? Thanks for the help. Marion Visitation Inter-Parish School Vienna, MO