Born on 27 May 1960 in the Brazilian city Sao Paulo, Paul Sergio Riedel uses his great-grandfather's name as his artist's name. He successfully finished his career in the sector of IT and databases in 2010 to focus on his thenceforth growing art and literature. He trained to become a psychotherapist according to the Non-Medical Practitioners Act between 2007 and 2011, thus deepening his knowledge of the human psyche. His mother tongue is Portuguese, which therefore shapes his language with its broad vocabulary, just as his interest for the antique, which influences his writing style with its rich literary forms.