Got this to reread the stories, alongside a first read of Borges' excellent lecture series Seven Nights. This compilation appears to consist of short fiction from both Labyrinths and Ficciones, along with verse.
If you haven't taken the Grand Detour of Literature that is Borges, this should be a perfect introduction. Nothing too inter-related or chronologically dependent, so can be read in any order.
You should know that you're involved in this already. Know that Borges wonders, and worries about you, modern man, in your "studio-laboratory, in the city's watchtowers, so to say, supplied with telephones, telegraphs, phonographs, radiotelephone apparatus, cinematographic equipment, magic lanterns, glossaries, timetables, compendiums, bulletins ..." {1945}
No matter what happens, though, don't miss "The Aleph", or "The Zahir", stories that are perfect little microcosms of Borgesland, in all its wisdom and incomprehensibility. No stretch to put Borges with Joyce and Beckett on that Ur Modernica shelf in the pantheon.
The task at hand for any effective Literature, according to Borges, is only that it impart sagrada horror, or the sense of holy dread, a tangible impression of infinity touching down in a human sphere. And it need not be tales of gods or otherplanetary gnostics (though Dante and Homer qualify nevertheless), but of everyday reality coming somewhat undone, within the frame of the story.
Any attempt I may make here to summarize is ridiculous. As Borges said of the Islamic master Averroës, who "spoke of the first poets, of those who in the Time of Ignorance, before Islam, already said everything there was to say and said it in the infinite language of the desert ... all poetry was summarized in the ancients ... "