Mercedes de Vega is a writer with a degree in Sociology and Political Science. She has lived and worked in New York, Barcelona, and Madrid, and currently resides in Montreal. She studied literature at the Complutense University of Madrid and has participated in numerous writing workshops. She is a regular contributor to various literary magazines and serves as a jury member for the Resonancias Short Story Contest.

She has published the short story collection Cuentos del sismógrafo (Ediciones Atlantis) and has contributed to several collective works, including the short story anthologies El hilo de Sofía (2011), translated and published by Sofia University in Bulgaria, Madrid golpea la crisis (2012), and Madrid golpea la corrupción (2013), all published by Ediciones Atlantis in Madrid.

Her first novel, El profesor de inglés, was published by Huerga y Fierro Editores. In 2015, she published Cuando estábamos vivos (Plaza & Janés), followed by Todas las familias felices (Plaza & Janés, 2018), El largo sueño de Laura Cohen (Plaza & Janés, 2020), and Una historia desconocida: Marie Jelen (Huso, 2021).

She is a regular contributor to her blog Escribir…, one of the most widely read on the web. Her writing is well known online and across social media platforms.