The eighth edition of this seminal guide is designed to support public health practitioners in keeping up-to-date amid the rapidly changing, complex challenges and contexts facing population health in the twenty-first century. Suitable for both undergraduates and postgraduates across a range of professions, the Practical Guide provides theories, principles and competencies for effective health promotion in multiple settings. The book is organised into three parts, covering an overview of the public health landscape, the essentials of planning and management, and how to develop capabilities across a range of activities. The text has been fully updated to examine new issues facing public health, including restructuring of the UK sector post-European Union; COVID-19 and its public health impact and legacy; economic and cost of living influences on population health; and the role of the internet and social media misinformation.