They are organized by author, and in no particular order of importance, quality, or anything other than how they appear on my bookshelf.
I am saddened that the $20 I sent Erik did not make it in time for my glorious book on PolyBase in SQL Server 2019 to make it on his recommendations list.
Jokes aside, you could do a lot worse than starting off with the list Erik has. There are quite a few books I’d add to that list, but the idea is not to scare people away by recommending a stack of books as tall as they are.