Book excerpt: Building and expanding upon the prior edition of Essentials of Health Justice, the new second edition of this unparalleled text explores the historical, structural, and legal underpinnings of racial, ethnic, gender-based, and ableist inequities in health, and provides a framework for students to consider how and why health inequity is tied to the ways that laws are structured and enforced. Additionally, it offers analysis of potential solutions and posits how law may be used as a tool to remedy health injustice. Written for a wide, interdisciplinary audience of students and scholars in public health, medicine, and law, as well as other health professions, this accessible text discusses both the systems and policies that influence health and explores opportunities to advocate for legal and policy change by public health practitioners and policymakers, physicians, health care professionals, lawyers, and lay people.