> ## 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. # Canva concepts The following Canva concepts are useful to know when you build an app with the Canva Developers SDK. Each one is covered in full in its own article. ## Apps For what an app is on each of the Developers SDK surfaces, see [Apps](https://www.canva.dev/docs/apps/platform-concepts-apps/). ## Assets For what an asset is, and how apps interact with assets, see [Assets](https://www.canva.dev/docs/apps/uploading-assets/). ## Designs For what a design is, and how apps interact with designs, see [Designs](https://www.canva.dev/docs/apps/designs/). ## Folders For what a folder is, and how apps interact with folders, see [Folders](https://www.canva.dev/docs/apps/platform-concepts-folders/). ## Teams, groups, and users For how Canva organizes users into organizations, teams, and groups, see [Teams, groups, and users](https://www.canva.dev/docs/apps/platform-concepts-teams-groups-and-users/).