What is the primary action required of a library staff member when receiving shelf-ready materials?

The primary action required of a library staff member when receiving shelf-ready materials is to mark materials with an ownership stamp. This step is essential because it identifies the library as the owner of the materials, helps to prevent theft, and ensures that the materials can be attributed to the library’s collection. By stamping the materials, the library asserts its ownership and integrates the new items into its inventory.

While cataloging new materials, storing items, and notifying the collection manager are also important tasks, they typically occur after the initial ownership confirmation has been established. The marking of the ownership stamp is a fundamental step that solidifies the library's possession of the materials and is vital for proper tracking and organization within the library system.