Justo Isasi   Through a major graphic presentation a retrospective shows the prolific work of the Belgian cartoonist and the influence of his most famous creature.

Like his alter ego with the unmistakable quiff hairstyle and inseparable fox terrier, Hergé has embarked on a journey around the world, with a stop in Madrid. On view through 19 February at the Círculo de Bellas Artes is a blockbuster exhibition on t