This book is written with the objective to give a quick and brief information about the histological organization of body organ and tissue system in relationship to the functions and importance. It is tried here to summarise about the cell, cell division, epithelium, nervous, muscle tissue and other body systems like digestive, respiratory, cardiovascular , integumentary, immune and lymphoid urinary, endocrine male and female reproductive system. The basic points have been sorted in bullet form to catch the eye of readers and students