This resource was created by a medical student at the Warren Alpert Medical School of Brown University for other medical students. It provides a comprehensive yet accessible overview of immunology as an alternative to traditional textbooks that contain information beyond what medical students need to know. The book contains original cartoon images, diagrams, summary tables, and self-assessments. It is intended to serve as a study aid for students wishing to strengthen their understanding of immunology, which is essential for success in preclinical medical education.