Collection Homepage
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|---|---|
| Example Collection Landing Page with Favorites and Reading Lists | Example Collection Publisher Page with Nested Folders |
CLU provides a visual browser to navigate your collection. Generally this is grouped by publisher, but CLU will render any folder structure you have.
Viewing Multiple Libraries

If you have multiple libraries, you can select which library you want to view from the dropdown menu in the top left of the collection page.
Sections
Currently, there are up to 6 sections that can show on the collection page:
Dashboard Customization
The order of these sections and which ones are hidden is a per-user setting. Arrange your dashboard from My Account; administrators can set the site default for new accounts.
Publisher
This is the default section. It displays all publishers in your collection and is always available. Clicking into a publisher displays all series folders or issues within that publisher.
Note
In documentation, this is referred to as the "Publisher" section, but it reflects whatever folder structure you have in your collection.
With multiple libraries configured, this section updates dynamically based on your selected library. Your Per page choice when browsing is saved and restored across navigation.
Favorite Collections
Displays all publishers that have been marked as a favorite. You can favorite a publisher by clicking the icon in the top left of the publisher list.
Want to Read List
This section draws from two sources:
- Flagged files and folders: Mark a series folder or issue as "Want to Read" by clicking the icon in the top left of the list, or via the Want to Read action in the folder dropdown (see Additional Features).
- Bookmarked reading lists: Each bookmarked list appears as a single card featuring a cover stack, read/total progress count, and a direct link to the list.
Continue Reading

Displays issues that have been started but not completed. Clicking the icon removes an issue from this section.
Discover
Generates personalized recommendations based on your reading history and Want to Read list. Recommendations are manually triggered so you can run them on demand when looking for something new. You must configure an API key in Recommendations to enable this feature.
On the Stack

The On the Stack section alerts you to new issues for series that you are currently reading, ensuring you stay caught up.
For example, if you have read Absolute Batman 001 through Absolute Batman 017, issue 018 will appear on the stack as soon as it is added to your library.
Note
Only the next unread issue in sequence is shown. If both Absolute Batman 018 and Absolute Batman 019 are unread, only issue 018 is displayed until it is marked as read.
On the Stack draws from two sources:
- Series in your Pull List: If you want to exclude certain series, toggle the stack option on the Series page.
- Bookmarked reading lists: Each bookmarked list contributes its next unread issue, displayed with a list-name badge.
If a bookmarked list and a subscribed series point to the same next issue, it is deduplicated and shown once.
Recently Added
Displays the last 100 issues added to your collection.
Browsing the Grid
All Books
By default, All Books sorts by series, then parent folder, then issue number (with cover year used as a tiebreaker). This keeps different volumes of the same series grouped together. Volumes kept loose in the same folder sort by issue number within that folder.
The Pager
The pagination control is sticky, pinning to the bottom of the viewport while browsing and settling inline at the true bottom of the page.

The pager pinned to the bottom of the viewport over a full grid.
The pager includes:
- Windowed page numbers with ellipsis navigation for large libraries.
- A "Showing X–Y of Z" readout.
- A mirrored Per page selector so you can adjust page size without scrolling back to the top.
- Seamless compatibility with Multi-Select mode so bulk action controls do not obstruct pagination.
Card Size
Toggle between Standard and Large card sizes in the filter bar.

Like Per page, this setting is saved in your browser rather than your account, allowing device-specific preferences (e.g. standard on desktop, large on tablet).
Folder Art
Folder cover art is generated automatically as you browse. When the grid encounters a folder without cached art, it queues a background task to generate it.
Folder art generation behavior:
| Behavior | Detail |
|---|---|
| Serialized processing | Archive extraction is processed one folder at a time to preserve system resources. |
| Request deduplication | A folder is never queued more than once concurrently. |
| Backoff on error | Folders that fail thumbnail generation are paused for 6 hours before retrying. |
| Preserves existing art | Uploaded or pre-existing art is never overwritten by automatic generation. |
CLU recognizes folder.png, folder.jpg, folder.jpeg, folder.gif, and folder.webp as folder art.
Generated folder art supports four styles — Fanned Stack (default), Single Image, Isometric Cascade, and 2x2 Mosaic Grid — selectable site-wide on the Personalization page. You can pin a specific issue's cover as a folder's primary art with Set as Folder Thumbnail, or restyle all existing folders with Regenerate All Thumbnails.
Automatic folder art generation can be disabled in File Processing Settings.
Comic Covers
Comic covers update automatically whenever an issue is edited, rebuilt, or retagged. The grid also detects when a comic archive is newer than its cached thumbnail and updates accordingly.
- Non-image formats: Files without cover extractors (such as standalone PDFs) and macOS system sidecars (
._*) are automatically skipped during generation and are not flagged as errors. - Corrupted archives: If cover extraction fails due to a damaged archive, the file is logged to the Problem Files page under Thumbnail with the exact error, where you can retry extraction or find a replacement.
Access in a Multi-User Install
In a multi-user install:
- Readers see a clean browsing grid without action menus, Multi-Select, or bulk action bars (which are reserved for Clerk and Admin roles).
- Content visibility is governed by library and folder grants. Recently Added is automatically filtered to include only folders the current user has permission to view.

