The Public Health Approach course is the first instalment of the wider Foundations of Public Health Practice specialisation from Imperial College London's Global Master of Public Health (MPH). The scope and content of this course has been developed from the ground up by a combined team of academics and practitioners drawing on decades of real-world public health experience as well as deep academic knowledge. Through short video lectures, practitioner interviews and a wide range of interactive activities, learners will be immersed in the world of public health practice. Designed for those new to the discipline, over four modules (intended for four weeks of learning), learners will become familiar with the scope, origins, ethics, principles and paradigms of public health practice. But there is also important foundational content for those coming from more experienced practitioner backgrounds. The 'Public Health Approach' is a phrase that is used widely to describe an up-stream, preventive, values-driven and evidence-based approach to improving population health. By the end of this course, learners will be confident with identifying and describing a wide range of public health challenges using the language and reference points of the public health profession. The subsequent courses require the knowledge from this course, as learners will be introduced to the public health toolkit of health needs assessment and evaluation, before taking deeper dives into behaviour change and health protection.