Born in São Leopoldo, degree in History from Universidade do Vale do Rio dos Sinos, UNISINOS. PhD in Social History from the Universidade de São Paulo and History professor at UNICAMP, São Paulo. He has several books published such as: Teatro da fé (Hucitec); Conversas com um jovem professor (Contexto); and Pecar e perdoar (Nova Fronteira). Exhibition curator such as: "A escrita da memória". Exponent at several institutions in Brazil and other countries.