A comprehensive overview of occupational and environmental health nursing, the 4th edition updates and expands common core knowledge in OHN practice. New underlying concepts throughout the book incorporate evidenced-based practice and a global perspective. Practical case studies are included to reflect specific examples of application to practice. In response to reader feedback, this new version has been extensively revamped into a narrative format, which allows for more in-depth discussion of critical topics. This text serves as a vital resource for a variety of readers, including beginning-level OHNs, experienced OHNs seeking a “consult” on a particular topic, OHNs studying for the occupational health nursing and other certification exams, faculty searching for authoritative source information, and interprofessional colleagues seeking information on the wealth of topics included in the 4th edition.