Based on her personal experiences and from a study of psychology, neuroscience, literature and memoires of great artists from different creative fields, the renowned Rosa Montero (Spain) presents us an intriguing look at the links between creativity and mental instability in her most recent book, El peligro de estar cuerda. This offers readers numerous curious insights into how our brain works when we create, identifying those aspects that influence creativity and putting them before the reader’s eyes as she writes, like a detective bringing together the various clues involved in an investigation. In conversation with the journalist of the American edition of El País, Javier Lafuente.