The document provides an overview of RDA Toolkit, which is an online product that allows users to interact with cataloging resources including RDA. It discusses what RDA is as a standard for bibliographic description based on FRBR concepts, and what the RDA Toolkit is as an integrated online product containing RDA, the RDA element set, AACR2, mappings, and user-created content. It also covers subscriptions, logging in, navigation, search functionality, and user-created content within the RDA Toolkit.