The authors have been teaching Cell Biology and Histology in medical schools for the last several years. One of the authors, Suresh Poosala, has a doctorate in Veterinary Pathology, who worked in St. Jude Children’s Research Hospital, Memphis. He teaches Histology to medical students at American University of the Caribbean, St. Maarten. His creative clinical and problem-based approach has made this course a great success. Dr. Maya Menon, the other author, is vastly experienced in teaching this course in various medical schools throughout the world for the past 25 years. She has a doctorate in Endocrinology from the University of California, Berkeley. With her vast experience, she had identified the pitfalls of grasping this subject by medical students and has written this book in a style that overcomes such shortages of traditional books.