Over 800 photographs, taken from the Yale Films of Child Development made in 19, and illustrating the physical and emotional development of a baby...the acts of eating, drinking, playing, laughing, crying, communicating, and so on. Scientifically, no one has made a greater contribution to this field; popularly this picture-story presentation brings Gesell material to a wider audience; photographically, the pictures leave much to be desired. They are stills from film records, vague and certainly not photogenic. However, this adds to the general knowledge of infant growth patterns. Market? -- Parents -- medical students -- child psychology classes, etc.