All of the BIPs, a description, the author(s), type, and status are listed on this page:
https://github.com/bitcoin/bips. Some also have the proposals and an in depth explanation of them.
BIP stands for Bitcoin Improvement Proposal
Thanks achow101. As documents, I wouldn't have looked for them in the github, where I would have looked for code, but there they are. Going to do my reading now
Locked as solved!