On the Move: Up in the air, on two wheels or four, on the tracks or blasting into space.Machines are always on the move! Bright illustrations and informative text show a wide variety of machines in scenes, busy getting from place to place.A really fun and engaging hot-topic for curious little engineers. Digging, ploughing, baking, flying and zooming into space.Take a look at all sorts of machines in action scenes, then turn the page to find out more.!A brightly illustrated series of four books, perfect for all young engineers, who like to see what machines do and how they work. STEM