The third edition aims to fulfil the long-standing need of the medical students for a concise textbook of community medicine, which makes it an easy and interesting reading, in lucid and simple English. Contributed by 14 eminent teachers, It comprehensively covers all the required topics, explaining the concepts at length and stimulates analytical thinking. The book seeks to encourage students to approach the subject with scientific logic and apply the learned concepts appropriately in the future during his/her professional career.