This text serves as the definitive reference guide for environmental health practitioners, consultants, and students seeking to understand core principles and contemporary regulatory standards. Edited by Stephen Battersby, this 20th edition builds upon the foundational work of Henry Hurrell Clay to provide a comprehensive overview of the field. The content is specifically aligned with the curriculum of the UK's Chartered Institute of Environmental Health, offering a structured framework for both generalist and specialist applications in public health management.

Experts and practitioners regard this volume as a foundational reference text for the environmental health profession. Readers frequently note the comprehensive nature of the updates, which effectively bridge historical practices with current legislative and technical requirements.