The author has been a teacher since 1984. He worked at the Language Center of the Catholic University in Lima and the Peruvian American Institute of Culture among the most prominent. He also devoted some years to traveling the Peruvian Andes for Andes Drilling Perú S.A. a reverse circulation drilling company from Canadian Foremost and Becker Drills. He currently teaches languages in São Paulo and works in the Language Department of a prestigious Law Firm.