Francesco Sorti is an Italian journalist who, in collaboration with his wife Rita Monaldi, wrote a series of literary-historical books called Imprimatur, Secretum and Veritas. They both live with their two young children in Vienna.Francesco Sorti majored in musicology and specialized in 17th century. He worked as a journalist for many years.All the book titles of the series will create the sentence Imprimatur secretum, veritas mysterium. Unicum... The authors translate this as follows: ''Even when a secret is printed, the truth is always a mystery. It remains only...'' The authors are keeping secret the titles of the final two volumes.