This is the thoroughly revised, updated and enlarged edition of the essential text-resource, designed for the students of MLT courses, medical laboratory technicians, graduates, postgraduates, and allied health science students. It offers in-depth, structured coverage across critical medical disciplines, making it invaluable for both the academic study and professional application. The book is systematically divided into four main sections: 1. Hematology covered in 12 chapters 2. Body Fluids covered in 11 chapters 3. Microbiology organized into sub-sections A, B, C, and D, comprising 31 chapters 4. Immunology covered in 5 chapters With a total of 59 chapters, this edition provides a comprehensive approach to interpretative pathology, supported by foundational principles and enhanced illustrations for better comprehension. This updated edition aims to assist students, educators, and clinicians in mastering the complexities of pathology in a clear and accessible format, making it a valuable reference for daily study and practice. Foreword by Dr Atul Goel, Director General of Health Sciences, Government of India.