The perfect balance of theory and practice! Here's the must-have information you need to understand the essential principles of immunology and to master the serology techniques most commonly used in the laboratory. Easy-to-read, student-friendly coverage focuses on the direct application of theory to clinical laboratory practice, preparing you for the real world in which you will practice. The 4th Edition of this popular text has been completely updated and revised throughout to reflect the latest advances in the field. A brand-new layout makes the content easier to understand than ever before.