(One type of book I don’t already know of examples of is biographies of relevant political leaders; please feel free to recommend some biographies of that kind!)
Regarding Xi, there is a surprising lack of substantive biographies. See here for some recommendations of article-length profiles.
Thanks! I found that article—and the two podcast episodes it linked to—quite interesting, and would now recommend them to others too.
(I find it much easier to find spare time for learning with my ears than with my eyes, so I’m skipping the other linked articles, at least for now. Though I do plan to see if Pocket can help me get regular articles into my ears as well.)