> For the complete documentation index, see [llms.txt](https://docs.scenic.tools/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.scenic.tools/guide/blocks/stacks.md).

# Block Stacks

Block Stacks are simply the combination of multiple blocks stacked on top of each other.

Stacking Blocks is the main mode of programming inside of Schéma and is how you combine functions of the various Blocks together to create complex behaviors.

![](/files/-LeHSQ_edCef9EgRVR2H)

Do not confuse with HyperCard's Stacks!

![](/files/-M7qEax0kUV4Jy6UwPtI)