Descriptive cataloging is the process of representing resources by recording their identifying traits and selecting specific names and titles to serve as access points. It is a key component of the larger cataloging process alongside subject cataloging, authority work, and encoding. Descriptive cataloging practices have existed for centuries and, over time, have become standardized through the use of cataloging codes. These documents guide this process by prescribing a consistent set of elements, providing directions on how to record these elements, and offering instructions on how to select and format access points. The goal of descriptive cataloging is not to create perfect representations but to provide data to serve users. The international cataloging standard Resource Description and Access (RDA) is now bringing more institutions under the same set of descriptive practices than ever before. This, along with recent technological developments, promises increased sharing and reuse of descriptive cataloging data.