Juan Eduardo Cirlot (1916-1973) was a poet, art critic, hermeneutist, mythologist, and musician. He wrote several books on the history and theory of art, published several poetry collections, and composed music.

Philip Pullman is the author of the trilogy His Dark Materials, the third book of which, The Amber Spyglass, was the first children's book to win the Whitbread Book of the Year Award in the UK. His most recent novel is The Book of Dust: La Belle Sauvage, the first book in a new companion trilogy to His Dark Materials. He lives in Oxford, England.

Valerie Miles, an editor, writer, and translator, co-founded the literary journal Granta in Spanish and also established the NYRB Classics series in Spanish. She curated the first exhibition dedicated to Roberto Bolaño's archive papers. She is author of A Thousand Forests in One Acorn. She lives in Barcelona, Spain.

Victoria Cirlot, is a medieval scholar and professor of Romance Philology at Pompeu Fabra University in Barcelona. Her recent books include La visión abierta, Del mito del grial al surrealismo and Grial. Poética y mito.