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Re:Ask HN: How to shadow a CEO? by realrali on Friday December 21, 2018 @01:48PM (#18735530)
Mastery by George Leonard, right? I've read it before and still have a copy that I will reread.
Re:Ask HN: How to shadow a CEO? by arikr on Friday December 21, 2018 @05:42PM (#18737364)
I strongly suspect they are referring to Mastery by Robert Greene