Born in Mexico City in 1981, Brenda Lozano is a fiction writer, essayist and editor. She studied literature in Mexico and the United States. She edits the Chicago-based literary journal Make and is on the editorial board of Ugly Duckling Presse. In addition to Loop , she has published Todo o nada (All or Nothing, 2009), which is being adapted for the screen, and a book of short stories, Cómo piensan las piedras (How Stones Think, 2017). In 2015, she was recognised by the Hay Festival and the British Council as one of the leading Mexican authors under 40 years of age, and she was selected by the Hay Festival in 2017 as one of the Bogotá39, a list of the most outstanding new authors from Latin America. Loop is her first book to appear in English.

Annie McDermott is the translator of a dozen books from Spanish and Portuguese, by such writers as Mario Levrero, Ariana Harwicz, Brenda Lozano, Fernanda Trías and Lídia Jorge. She was awarded the Premio Valle-Inclán for her translation of Wars of the Interior by Joseph Zárate, and her translation of Brickmakers by Selva Almada was shortlisted for the Warwick Prize for Women in Translation. In 2024 her translation of Selva Almada's novel Not a River was shortlisted for the International Booker Prize. She has previously lived in Mexico City and São Paulo, and is now based in Hastings in the UK.