Maybe the problem is just with the title: "The best books on Philosophy of Mind". The words "the best" suggests that these are objectively the best 5 books overall.
But in the article, it says "he selects five of [ emphasis mine ] the best books in the field". This basically means that, of the best (which could be hundreds), he has selected 5 that he likes for more particular reasons other than just quality.
Perhaps a better title would be something like "Selected books on Philosophy of Mind". Hopefully we can assume they are high-quality books or they wouldn't bother to recommend them, so it isn't necessary to emphasize that with "best".
But in the article, it says "he selects five of [ emphasis mine ] the best books in the field". This basically means that, of the best (which could be hundreds), he has selected 5 that he likes for more particular reasons other than just quality.
Perhaps a better title would be something like "Selected books on Philosophy of Mind". Hopefully we can assume they are high-quality books or they wouldn't bother to recommend them, so it isn't necessary to emphasize that with "best".