The histories in this collection weren't as near and dear to me as those of the notable Hogwarts teachers from the previous one but I'm always up for more Harry Potter history and backstory. I'm always impressed with how much though and depth that JK Rowling has put into this world, whether initially or simply to continue building layers upon layers for all of the fans. The complete list of Ministers of Magic proves how much she's really developed this! 
 I do wish we got a bit more about Slughorn and Peeves here because I feel like they would have had really interesting details but I appreciate what we got!