# Audible3 Books Tab + Tier Access Update

## Admin Books tab
- Book cards now show only the saved cover artwork.
- Each card has only two controls beneath it: **Edit** and **Delete**.
- Title, publisher, status, category, series, featured status, and tier badges were removed from the card view.
- Search, category filtering, and pagination remain available above the grid.

## Book editor
- The old single Access dropdown has been replaced with **Available Membership Tiers**.
- Admin can select one or many membership tiers for every book.
- Tier choices come from the current membership tier configuration, including custom tiers.
- At least one tier must be selected before a book can be saved.
- Existing books remain backward-compatible until they are edited and saved with explicit tier selections.

## Member access
- Book tier eligibility is enforced in both the browser and the production server.
- A member whose current plan is not selected for a book sees an **Upgrade required** message.
- The message explains which tier(s) include the teaching and links to Membership options.
- Ineligible books cannot consume a credit or expose protected audio/reading files.
- Public preview samples remain available when configured.

## Starter monthly book
- The Starter monthly-book selector only lists books that are eligible for the Starter tier.