A person goes through a number of emotional and psychological changes as he transits from dependency to increased autonomy, between the stages of birth and the end of adolescence. This process can be termed as child development and has a predictable sequence of stages that is unique to each child's development. Physical growth, cognitive and intellectual development, motor development, socio-emotional changes, gender identity, language development, etc. occur during this process. A number of factors can prove to be a hindrance to the normal development of a child, such as postnatal depression, malnutrition, maternal drug abuse, poverty, etc. This book traces the progress in the field of child development and highlights some of its key concepts and applications. It includes some of the vital pieces of work being conducted across the world in this field. The extensive content herein provides the readers with a thorough understanding of the subject.