Mario was born in São Paulo in 1962. He was editor-in-chief of Veja, Brazil’s most influential weekly magazine and is now at Revista Crusoe. In 2005 he published O ANTINARCISO (THE ANTI-NARCISSUS), a collection of twelve tales on the theme of loneliness, and it won the Melhor Livro de Contos de 2005 prize (Fundacao Biblioteca Nacional). His new collection of stories THE MOUTH OF TRUTH was published by Record Brazil in early 2009. His stories have appeared in English The Drawbridge Magazine and Words Without Borders.