The cipherwork (cryptanalysis) on 911/77/311 terrorism, I did for SAS veterans/British Mil. Free tutorials, if interested;
https://www.cipherassets.com/2022/11/operation-order-of-nine-angles-opo9a.html
Cipher-tables, etc, all included (and only slightly behind mil understanding); ref. docs (3 essentials for when you're on the road and don't want to download the entire series again):
How to Decipher
http://www.ascension-algorithm.com/2022/11/how-to-decipher.html
Keys/Virtual Heads Up Display aka v-HUD
http://www.ascension-algorithm.com/2022/11/virtual-heads-up-display.html
Cipher-table (needs updating)
http://www.ascension-algorithm.com/2020/06/aa-911-311-77-ciphersubstitution-table.html
One other person on Nostr has learned the basics, give them a follow/say hi:
KN6ZZV
nostr:npub1v79rprjecf8wrv6zkrlf400klha9mnxrpt4jwkjn0c0hlgrqn77qvfefej