> For the complete documentation index, see [llms.txt](https://primer2.dynamobim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://primer2.dynamobim.org/5_essential_nodes_and_concepts/5-3_the-building-blocks-of-programs.md).

# The Building Blocks of Programs

Once we are ready to dive deeper into developing Visual Programs, we will need a deeper understanding of the building blocks we will use. This chapter introduces fundamental concepts around data - the stuff that travels through the Wires of our Dynamo program.

![](https://1734247194-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY5ZuHF3yuXFWp1C46ZSo%2Fuploads%2Fgit-blob-ce1e7d5f45223d95ef20108099d2973c22e97c6d%2Fbuilding%20blocks%20of%20program.png?alt=media\&token=1638ee87-aed5-4b96-8d0e-7375273243b3)