Mario Mazzei, studied Physical Education and Systems Analysis, has been a member of the spiritist doctrine for 40 years, is a medium, writer and speaker. He works at the Centro Espírita Joanna de Ângelis (Ubatuba – SP), and creator of Rádio Web Sementes da Boa Nova. He is the author of the books: Profissão Mergulho, Spiritist Radiography of the Holy Scriptures, a Comparative Study. He also psychographed the books dictated by the Spirit Brother Metelo: Gallienus Augustus, A Abadia de Aragosa, Sob o Império do Sol, Terra Brasilis and the most recent Brasil: Escola de Almas.