This edited book addresses the important topic of child development in the last half of this century. The central focus of the book is the development of skilled motor actions by children, such as maintaining posture, walking, reaching, and grasping. The contents are based on the papers contributed in the first Mac Keith Meeting held at the Royal Society of Medicine in London in 1994. According to the preface to the book, the meeting aimed at making connections between levels of explanation, normal and pathological processes, basic and clinical research, and so on. Therefore, underlying themes are linking neurophysiological and psychological explanations, pre- and postnatal behavior, input and output processes, ballistic and graded movements, stability and variability, and so forth. In fact, the book succeeds in integrating findings from clinical and basic sciences to both normal and pathological motor development.