Anne Carson’s Glass, Irony & God is introduced modestly by Guy Davenport:
Poets distinguish themselves by the way they see. A dull poet is one who sees fashionably or blindly what he thinks poets see. The original poet sees with new eyes, or with imported vision (as with Eliot seeing like Laforgue or Pound like the Chinese). Anne Carson’s eyes are original.
Of the exceptional The Glass Essay Davenport goes on to say:
The test of poetry, however, is easy. Read “The Glass Essay”, a poem richer than most novels nowadays. See how its utter clarity of narration it weaves and conflates one theme with another, how it works in the Brontës as daimons to preside over the poem and to haunt it, how it tells two strong stories with Tolstoyan skill, how it reflects on its themes in subtle and surprising ways.