After a couple of hours struggling with the introduction, without understanding (a) the philosophers she refers to (b) the political context she refers to and (c) the dense prose which seems to be translatable in six different ways, I pronounce myself stuck.
DH has kindly showed up with (a) the original French (I have an A level from 1989 and use French on campsites) and (b) a book called “At the Existentialist cafe” by Sarah Bakewell.
I wondered what kind of relationship others have with the book.