This report addresses the user query regarding the availability of a free PDF version of the book Professores e Professauros by Celso Antunes. The investigation concludes that while the author is a prominent Brazilian educator, . It is highly probable that the user is referring to the book "Professores e Professauros: A Sala de Aula e a Génese da Ética" (though the title is often cited simply as Professores e Professauros in academic papers) or, more likely, the book "O Jeito Tranquilo de Ensinar: O Método Nossa Senhora de Sion" or "Na Sala de Aula com a Inteligência Emocional" , given the thematic context often associated with the "Professauros" term in his work.