Here is a set of notes that I made about Post Quantum Cryptography while bored at work as a potential resource. It’s a compilation of what I found interesting to help me get fully comfortable with the FIPS 203 and FIPS 204 algorithms CRYSTALS-Kyber and CRYSTALS-Dilithium. Maybe they’ll be interesting to you. They are presented in a lecture notes style, maybe at the level of a late undergraduate, but I’ve omitted a number of technical details that someone using them doesn’t really need (mainly any hardcore proofs). I’ve tried to make it self-contained in terms of knowledge, so there’s an appendix with a brain dump of all the required mathematical background. Hopefully there aren’t any errors in it! Will be coming soon as a (very) long blog post!