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

# Appendix

- [Philosophy](https://docs.projectserum.com/appendix/philosophy.md): This guide lays out the philosophy and primary objectives of Project Serum.
- [Serum Core](https://docs.projectserum.com/appendix/serum-core.md): An overview of Serum's Asset Agnostic Orderbook
- [Fees](https://docs.projectserum.com/appendix/fees.md): This page lists out the fee structure on Serum.
- [Media](https://docs.projectserum.com/appendix/videos-serum-academy.md): This guide offers a list of informative videos and other media about Serum and its ecosystem.