How the Immune System Works How the Immune System Works provides a concise and accessible overview of how the immune system protects us from disease. Written in a lively and engaging style, this unique book makes it easy to see the big picture of the immune system—without any confusing jargon or complex technical details. Now in its seventh edition, this popular book features an entirely new chapter that describes the role of the immune system in fighting COVID-19, as well as up-to-date inf...