> ## Documentation Index > Fetch the complete documentation index at: https://www.canva.dev/docs/apps/llms.txt > Use this file to discover all available pages before exploring further. # Folders An introduction to folders in the Canva Developers SDK. Users organize their designs, assets, and other items into *folders*. Folders are a collection of items, such as: * Other folders. * Assets, such as uploaded images, audio, and videos. * Designs, such as Instagram posts, Presentations, and Documents (Canva Docs). * Brand Templates. When identifying folders, we recommend using the folder's `id`, which can't be changed by a user. The top level of the user's content library, [Projects](https://www.canva.com/help/find-designs-and-folders/), is represented in APIs as a folder with the ID `root`. For REST API endpoints that interact with folders, see the [Folders](https://www.canva.dev/docs/apps/rest-apis/reference/folders/) API reference.