LC於2022年7月針對MARC 21之書目與權威等格式發布第34次更新。

書目格式更新內容包括：

1. 新增資料：
   • 新增欄位：欄位387及788；
   • 新增指標值：欄位382指標1之值、欄位384指標1之值；
   • 新增分欄：欄位856新增分欄$e及$l及$n及$r及$t、欄位76X-78X新增分欄$l、欄位340新增分欄$q、欄位533及8XX新增$y、欄位0XX-7XX新增分欄$7、欄位788新增分欄$5；
   • 新增附錄：附錄J。
2. 修改資料：
   • 修改欄位：修改欄位340之定義與範圍、修改欄位507之欄名及其定義與範圍；
   • 修改分欄：修改欄位340分欄 $f之名稱。

權威格式更新內容主要為新增資料：(1)新增欄位：欄位387；(2)新增指標值：欄位382指標1之值、欄位384指標1之值；(3)新增分欄：欄位856新增分欄$e及$l及$n及$r及$t、欄位0XX-7XX新增分欄$7、欄位373新增分欄$i及$4；(4)新增附錄：附錄H。

以上MARC 21書目與權威格式於多數欄位中大規模新增分欄（書目格式新增分欄$7及$e及$l及$y、權威格式新增分欄$7及$e），以及書目格式中新增附錄J與權威格式中新增附錄H，皆和「資料來源」（Data Provenance）有關。

更新 國家圖書館學位論文學校及系所（新增13校；修改11校）

The relationship between physical and digitized rare books can be complex and, at times, nebulous. When building a digital library, should showcasing a representative slice of the physical collection be the goal? Should stakeholders focus on preservation concerns, high-use items, or other concerns? To explore these conundrums, a special collections librarian and digital services librarian performed a comparative analysis of their library's physical and digital rare books collections. After exporting MARC metadata for the rare books from their ILS, the librarians examined the place of publication, publication date, and broad subject range of the collection. They used this data to create a variety of visualizations with the open-source digital humanities tool Tableau Public. Next, the authors downloaded the rare books metadata from the digital library and created illuminating data visualizations. Were the geographic, temporal, and subject scope of the digital library similar to that of the physical rare books collection? If not, what accounts for the differences? The implications of these and other findings will be explored.

The purpose of this study is mapping the data elements of Persian traditional music resources to the entities, attributes, and relationships of IFLA's Library Reference Model (LRM). This research is applied in terms of purpose; qualitative, in terms of approach; and content analysis, by method. Due to the weakness of the current lists of Persian traditional music resources in the field of retrieving musical resources, the IFLA Library Reference Model as a reference model in the field of resource organization is an optimal and efficient model, although it needs practical research to be used in a variety of resources, because this model has presented its structure in general. In this study, data elements of Persian traditional music resources were extracted from reliable reference resources highlighted by experts and the extracted list was confirmed by researchers and experts, through applying the contingency coefficient in the form of categorized lists; then, the checklist of the LRM final version (August 2017), the validity of which has already been assessed, compared to LRM. Finally, the data elements of Persian traditional music resources were classified in the form of 25 main categories. Mapping between these categories and LRM's entities, attributes, and relationships indicates that LRM needs to be expanded in order to be effective in organizing.