New York: Simon and Schuster, 1949. First Edition. First printing. Octavo (23.5cm.); pink pictorial paper boards quarterbound in blue publisher's cloth w/ metallic lettering on spine, in pink pictorial dustwrapper; 54pp. Text block has minor handling wear and slight toning to margins, otherwise sound. Boards chapped along bottom edge. Text and boards both just about Near Fine. Dustwrapper shows some surface wear, light soiling and rubbing, with creasing and closed tears along extremities. Chipping also present on crown and heel of spine, else dustwrappers are Very Good. This book provides an accurate (for its time) but gentle explanation of human development and reproduction, geared towards children aged 6-10. Two-tone illustrations and diagrams throughout.