> For the complete documentation index, see [llms.txt](https://wiki.pptxbuilder.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.pptxbuilder.com/faq-1/what-is-a-slide-master.md).

# Terminology

| **PowerPoint Element** | **Hierarchy** | **Purpose**                                                                                                                        |
| ---------------------- | ------------- | ---------------------------------------------------------------------------------------------------------------------------------- |
| Slide master(s)        | Parent        | Applies the slide master formatting globally to the presentation. Specifies a layout and formats common to a set of slide layouts. |
| Slide layout(s)        | Child         | Specifies a variant of a slide master layout.                                                                                      |
| Placeholder(s)         | Grand child   | A pre-formatted container into which content can be placed.                                                                        |