https://www.reddit.com/r/DecisionTheory/search?q=flair%3ATextbook&restrict_sr=on&include_over_18=on&sort=relevance&t=all might be a starting point.
https://www.reddit.com/r/DecisionTheory/search?q=flair%3ATextbook&restrict_sr=on&include_over_18=on&sort=relevance&t=all might be a starting point.