This unit introduces you to the theoretical and practical underpinnings of public health via a diverse range of case studies. Together we will critically analyse what public health is and what it seeks to achieve. We will explore key concepts that will be taken up in more detail in other core and elective units, challenge current orthodoxies, and seek to develop a reflective and analytical approach to public health practice and research. We will have a particular focus on exploring the health and well-being challenges experienced by indigenous peoples, migrants and other disadvantaged groups, in Australia and globally. We will do this through considering the meaning of evidence and the historical and contemporary public health context, with the aim of working together to identify ethical, innovative and effective solutions. Throughout this unit you will be encouraged to interact with your unit coordinators, tutors and fellow students, ask questions, and respectfully debate answers to questions such as: What is public health? What does it mean to think beyond the social determinants? What is equity and why does it matter? Integration of Aboriginal and Torres Strait Islander knowledges and perspectives: This unit pays particular attention to Aboriginal and Torres Strait Islander public health challenges and solutions. The Sydney School of Public Health is committed to graduating public health professionals who have the competence and confidence to work effectively and respectfully with Australia's First Peoples. This unit will help prepare you for this work and provide important foundational knowledge that will be further advanced in concurrent and subsequent Master of Public Health units of study.