Development of a child is a continuous process and each parent is very much apprehensive about it. It is their primary concern to see whether the child is developing normally or not, and we, the members of the medical fraternity, are their constant companions and source of information, all through the ups and downs of the growing years of the child. Development specifies certain maturation of functions. It is related to the maturation and myelination of the nervous system and indicates acquisition of a variety of skills for optimal functioning of the individual. Development of a child is influenced to a great extent by various genetic and environmental factors. Corrective measures, if any, taken appropriately can be helpful. Understanding normal development and early detection of developmental disorders is the primary aim of this book. Every effort has been taken to develop this book in a simple language with easily understandable photographs to unable the students and the parents to understand the process of development. I personally believe that it is the child who will dictate the terms, we have to follow his needs, requirements, habits and food likes and dislike and so on. We can not and never should try to enforce on to the child our liking and wishes. Parents who are unrealistic about their child can achieve only unhappiness. But those who are able to assess their child's ability and adjust their expectations accordingly will maintain a happy family in years to come.