Mariona Grau holds a law degree and a Master in European Graphoanalysis, specializing in graphology, graphopathology, and forensic graphology. She is also an Expert Judicial Calligrapher, expert in graphics, documents, and forensic linguistic partner, and holds a Master in Mediation.

Mariona began her professional career as a lawyer in 1991, specializing in Intellectual Property Law. In 2002, she combined her legal practice with the creation of the course “Sustainable Tourism Quality” for Med Forum of Mediterranean countries under the Ministry of Environment, organizing courses and teaching classes related to the legal framework. In 2009, she became involved in the project for the creation of an International Archive of Art Objects, where she worked as a graphologist, collaborating with private companies and the Tecno Mataro Campus, as well as carrying out official and private judicial appraisals. Since 2012, she has collaborated with the Gaudí World Congress and is currently studying the writing and signatures of Antoni Gaudí in a project titled “The Genius of Gaudí through his writing.”