I found this article[1] to be a great introduction to Pratt Parsing as well, it even ties into how it's actually a Shunting Yard algorithm in disguise[2].

[1]https://matklad.github.io/2020/04/13/simple-but-powerful-pra...

[2]https://matklad.github.io/2020/04/15/from-pratt-to-dijkstra....