You may query the events highlighted in the AGENDA section. However, here you can get an idea of the annual calendar of the shopping fairs:
MARCH: Stock Day (discounts, promotions, live music)
APRIL: Medieval Market in Holy Week
MAY: Feria de Asociaciones (Associations Fair)
OCTOBER: Natural Foods Fair and Stock Day
DECEMBER: Feria del Juguete Antiguo y del Coleccionismo (Antique Toy and Collectors Fair), Medieval Market and Noche de la Luz (Night of Light).