Analysis of Critical Speech for Linguistic and Non-Linguistic Experts, organised by José Ribamar Lopes Batista Jr., Doctor of Language from the University of Brasília, Denise Tamaê Borges Sato, also Doctor of Language at the University of Brasília, and Iran Ferreira de Melo, Doctorate in Letras/Philosophy and Portuguese Language by the University of São Paulo, explores the aspect of Critical Discourse Analysis (ADC) in a didactic manner. To this end, it brings about the evolution of thinking around the social theory of speech, the philosophical foundations, theoretical assumptions and the practice of critical social research, bringing together the contribution of twelve renamed researchers from different Brazilian higher education institutions.