Which core competencies should an EA refresh?

In the Royal Navy, there are a series of shortish online courses called Naval Core Training (NCTs), on subjects like resisting capture, operational law, and diversity & inclusion policies, that every sailor must remain "in date" for.  The powers that be decided that these are the fundamental competencies that all Service personnel must have, and the courses are to be completed anew every year or two. I understand some Universities require students to review similar courses in research integrity, and I expect similar schemes exist in many other professional settings. 

It struck me yesterday that I had largely forgotten some prominent topics discussed in Rationality: A-Z, as it is several years since I read it, and I resolved to read the How To Actually Change Your Mind section again. Having worked through the safety awareness NCT earlier that day, it occurred to me that I should treat the most important concepts in Rationality: A-Z as core competencies, to be routinely refreshed. 

This inevitably lead me to a broader question - what other competencies should be included in Rationalist Core Training, if only that acronym weren't already taken? For someone intent on optimising charitable donations and planning their career with altruistic impact in mind, which resources should be regularly reviewed to ensure a somewhat detailed understanding is retained? I'm very keen to see what the people of this forum would suggest!