Christian Bök 1966, Canadian poet.
    ‘Of Yellow’ (2001), is a polychromatic transcription of the sonnet “Voyelle” by Arthur Rimbaud. Vowels have been replaced with blocks of colour according to the schema described in the sonnet itself: “A noir, E blanc. I rouge, U vert, O bleu: voyelles.” All other letters, commas and spaces are grey.”
    From: The new concrete : visual poetry in the 21st century. 2015