Immunology is a diverse and growing discipline that can be defined as the study of the tissues, cells and molecules involved in host defence mechanisms, how the body defends itself against disease, and what happens when it all goes wrong. Nature Reviews Immunology provides in-depth coverage of this field, from fundamental mechanisms to translational aspects of basic research, and reviews the field’s most important developments. All Review and Perspective articles are carefully commissioned by the editors and written by leaders in the field. Articles are subject to rigorous peer review and provide high-quality and authoritative coverage of the field in each issue. Articles are carefully tailored by the editors to provide accessible information for non-specialists, and this is additionally enhanced with the use of Glossary terms and highlighted references. Each issue also contains Research Highlight articles – short pieces written by the editors that summarize the results from recent hot research papers.