This lavishly illustrated series explores from top-to-bottom the physical world around the reader, who will already know something of the topics described in each book. Accurate illustrations combines with explanatory keys give in-depth information about the natural and man-made world in which we live. Creatures and machines are shown in startling detail, making this series an excellent companion to school study books on these core subjects. Cutaway diagrams, a glossary and index complete each informative volume.