'As many of us have discovered in the COVID-19 era, telehealth is not plug and play. This in-depth, interdisciplinary analysis of two contrasting health systems by someone who has made technology work in challenging circumstances has many lessons for the wider world.' -Trisha Greenhalgh, Professor of Primary Care Health Sciences, University of Oxford, UK 'In an original contribution on the incorporation of telehealth by public health systems, Taylor develops a comparative case study between Australia and Brazil. He offers interesting insights into conceptual frameworks, the importance of the political context, the governance structure, as well as the relationship between professionals, managers, stakeholders, shaping the provision of services through telehealth, before and after COVID-19.' -Ana Estela Haddad, PhD, Free Lecturer, Associate Professor, University of Sao Paulo, Coordinator, Brazilian Telehealth Program 2007 to 2012, Ministry of Health, Brazil 'In 2020, our lives changed. And the way we delivered healthcare changed as well. The rapid adoption of telehealth in countries across the globe has transformed healthcare, bringing both opportunities and risks. This timely publication examines the phenomenon of telehealth in the age of COVID-19.' -Michael Kidd AM, Professor of Primary Care Reform, The Australian National University, Canberra, Australia 'Not only does Alan Taylor make an important contribution to our understanding of telehealth in times of crisis, he also adds a very important dimension to our understanding what lies behind the success or failure of healthcare interventions. His identification of the huge significance of pre-existing social and cultural contexts is something that everyone involved in developing or evaluating health services should take to heart.' -Sam Porter, Professor of Nursing Sociology, Head of Department of Social Sciences and Social Work, Bournemouth University.