Primeiros Passos is a 19-book series with 19 released primary works first released in 1978 with contributions by Arnaldo Spindel, Afrânio Mendes Catani, Caio Prado Jr., Jean-Claude Bernardet, Marilena Chauí, Vavy Pacheco Borges, Leandro Konder, Carlos Rodrigues Brandão, José Roberto Campos, João Francisco Regis de Morais and 14 others.