This document provides an overview of key changes in cataloging practices when transitioning from AACR2 to RDA, with a focus on serials and e-resources. It discusses new terminology in RDA, how to identify an RDA record, changes to recording relationships and titles, and replacing the GMD with new content, media, and carrier type fields. The document also highlights specific differences between AACR2 and RDA practices for elements like parallel titles, capitalization, and corrections.