There's not exactly a consensus these days on what is correct. Either is valid, but I generally prefer _Brooks' Law_ to _Brooks's Law_ since it looks more clean

There's not exactly a consensus these days on what is correct. Either is valid, but I generally prefer _Brooks' Law_ to _Brooks's Law_ since it looks more clean. Of course, Brook's Law is incorrect, as there is no "Brook" Here's an example of the lack of consensus: Either is acceptable: https://data.grammarbook.com/blog/apostrophes/apostrophes-with-names-ending-in-s-ch-or-z/ https://data.grammarbook.com/blog/apostrophes/apostrophes-wi... https://owl.purdue.edu/owl/general_writing/punctuation/apostrophe_introduction.html https://owl.purdue.edu/owl/general_writing/punctuation/apost... Chicago vs AP style: https://apvschicago.com/2011/06/apostrophe-s-vs-apostrophe-forming.html https://apvschicago.com/2011/06/apostrophe-s-vs-apostrophe-f... APA style suggests appending the extra 's': https://blog.apastyle.org/apastyle/2013/06/forming-possessives-with-singular-names.html https://blog.apastyle.org/apastyle/2013/06/forming-possessiv...