Laura Robinson is Professor of Sociology at Santa Clara University, USA.Katia Moles is a Social Ethicist of Technology in the School of Engineering at Santa Clara University, USA.Sonia Virginia Moreira is Professor of the Graduate Program in Communication at the State University of Rio de Janeiro, Brazil.Jeremy Schulz is Researcher at the UC Berkeley Institute for the Study of Societal Issues, USA.

• Chapter 1. Problematizing Communication Research in the Public Sphere; Katia Moles, Laura Robinson, Sonia Virginia Moreira, and Jeremy SchulzSection 1. Political and Policy Media Spaces Chapter 2. Small Internet Providers as Agents: Internalizing Digital Infrastructure in Brazil; Sonia V. Moreira, Nélia R. Del Bianco, and Cézar F. Martins Chapter 3. An Analysis of Bolsonaro and Trump's Social Media: Agenda Setting in Presidential Campaigns in Brazil and the U.S.; Élida Borges Rodrigues Gomes and Tatiana Monteiro ReisChapter 4. A Disaster After the Disaster: A Comparative Framing Analysis of the Samarco Dam Collapse; Julianna M. Trammel Chapter 5. Digital Participation of Left-Wing Activists in Brazil: Cultural Events, Mobilization, and Networked Protest; Julien Figeac, Nathalie Paton, Angelina Peralva, Arthur Coelho Bezerra, Héloïse Prévost, Pierre Ratinaud, and Tristan Salord Section 2. Communication Research and Journalism Chapter 6. Local and Regional Journalism in the Interior of Brazil: Contexts, Developments, and Emergent Themes; Jacqueline da Silva DeolindoChapter 7. On the Role of Redundancy in the Popularization of Science: An Analysis of Brazilian Journalistic Texts on Covid-19; Margarethe Born Steinberger-Elias Chapter 8. Reshaping Journalism Practices through Collaboration: An Analysis of Three Collaborative Projects in the Americas; Lucia Mesquita, Gabriela Gruszynski Sanseverino, Mathias Felipe de Lima Santos, and Giuliander Carpes da Silva Section 3. Communication Research Methods Chapter 9. In the field in Brazil and the USA: Doing Ethnography in Communication; Aline Maia Chapter 10. Visualizations as Evidence in the Arts, Humanities, and Social Sciences; Jeremy Schulz, Laura Robinson, and Katia Moles