Good books so as to grow as a family: this is the theme of the 27th edition of the Catholic Book Expo held in Buenos Aires from 31 August to 13 September 2015. The event, celebrated in preparation for the upcoming Ordinary Synod on the Family (to take place in Vatican City in October), opened with a Mass presided over by Archbishop Héctor Aguer of La Plata, who is also the honorary president of the Expo.