: The origins of phrases like "¡Viva la Pepa!" or why we say someone is "bored like an oyster" ( aburrirse como una ostra ).

: Why our hands and feet don't tan, or the actual percentage of the brain humans use.

: Features a prologue by Miguel Ángel Rodríguez "El Sevilla" and illustrations by Marta Contreras .

Reseña: “Vuelve el listo que todo lo sabe”, de Alfred López |

: A portion of the proceeds (1%) is donated to the Fundación Inocente Inocente .