At age 24, he published Dias Perfeitos (Perfect Days, Companhia das Letras). The novel became a phenomenon: its translation rights were acquired by publishers in the United States, Canada, England, France, Spain, Italy, Portugal, Germany, Turkey, Holland, Macao, Hong Kong and Taiwan; In Brazil, it quickly sold 20,000 copies, occupying the bestseller list for weeks.

   His work has been reviewed in major newspapers and magazines in Brazil (Veja, O Globo, Estado de São Paulo, Folha de São Paulo, Correio Braziliense, Metro), and this young author has come to be considered a “revelation in the detective and suspense novel genre in Brazil. “

   His first two books already have planned film adaptations: Suicidas, under the direction of Matheus Souza; and Dias Perfeitos, under the direction of Daniel Filho. Abroad, Perfect Days has already been published in the Netherlands, Italy, Portugal, Spain and France, and reviews appearing in various newspapers and blogs consider the novel a “Brazilian version of the Coen brothers.”

   In August 2015, Montes published his third book, O Vilarejo, a “fix up” horror novel that has earned comparisons with the works of Stephen King.

   Currently, Montes writes a weekly column for the newspaper O Globo, and a monthly column for the blog from the publisher Companhia das Letras. He also writes screenplays for film and television, such as the series Espinosa (GNT channel) and the horror series Supermax (Rede Globo channel).