# The three source types
Phoca Download Source offers three source types. All three return published content only (and, for documents, approved content).
## Single document
Outputs exactly one document — ideal for a highlighted download, such as the current version of a product on the home page.
- **Document:** chosen from all published downloads.
## Documents
Outputs a list of documents. The mode determines how the list comes about:
### Mode "manual"
- **Documents:** multiple selection; for orientation the entries show the category in square brackets (for example *\[Manuals\] User guide*).
- **Sorting:** "manual selection order" keeps the order of your selection; alternatively by title, date, popularity or the Phoca order.
### Mode "automatic"
- **Categories:** one or more categories — or *all categories*.
- **Include subcategories:** includes up to four levels of subcategories (see [Categories and subcategories](https://docs.graup-it.de/books/phoca-download-source-en/page/categories-and-subcategories)).
- **Sorting** and **count** (default 20, upper limit 500).
Automatic mode is the choice for "living" download areas: new files in the selected categories appear in the layout immediately, without anyone having to touch the page.
## Categories
Outputs download categories — as a tile overview linking to the respective category pages, for instance.
- **Mode "manual":** a fixed selection of individual categories.
- **Mode "automatic":** all categories, or the subcategories of a chosen parent category.
- **Show empty categories:** by default, categories without files are hidden.
- **Sorting** (order, title, popularity) and **count**.
## The sorting options at a glance
- **Manual selection order** (document list in "manual" mode only)
- **Order** — the sorting defined in Phoca Download
- **Title A–Z** / **Title Z–A**
- **Newest first** / **Oldest first**
- **Most popular first** — by download counts
Applies to version 1.7.3.
[Deutsche Fassung](https://docs.graup-it.de/link/118)