Comprehensive yet concise book on immunization which covers national immunization schedule of Government of India, IAP recommendations, WHO and AAP recommendations. This book would be equally useful for doctors working in the private and government sector. As often doctors come accross international patients the WHO and AAP recommendations would be useful. The ‘think a bit’ section covers most dilemmas faced in day to day practice with rational scientific explanations. The ‘did you know’ section gives a sneak peak into history of communicable diseases, which makes the reading interesting. The book being concise would serve as a quick reference for post graduates. Author: Dr Sheeja Sugunan has delivered talks on various aspects of immunization in many state and national conferences. Has been the state coordinator of IAP Immunization module. Resource person for immunization in state of Kerala. Has been a special invitee to state advisory Committee on immunization. She has contributed chapters on immunization in textbooks. Has taken classes for pediatricians, general practitioners, public health nurses, staff nurses and CDPOs. The 1st edition of the book was appreciated by students and practitioners alike.