Gustavo Vidal Manzanares graduated in law from the Autonomous University of Madrid. He is a Jurist of Penitentiary Institutions in Spain. He describes himself as a "repentant socialist" and has published various works on the history of the Socialist Party in Spain and Freemasonry, an organization in which he achieved the rank of master although he is not currently active. He is the brother of the historian and writer, César Vidal. He has collaborated in newspapers, radio and television. He is known for his participation in "Looking for the KO", a section of the online television program of Cesarvidal.tv. Gustavo Vidal has published several books and lives in Madrid.