Book excerpt: See inside some of the world s most enormous vehicles in this amazing lift-the-flap book by the award-winning, bestselling illustrator Stephen Biesty. Discover eight monster machines: from the double-decker Airbus to the largest submarine on Earth, and from the planet s most massive dumper truck to the biggest helicopter ever made. Little engineers will love finding out about motors, periscopes, rocket engines and giant propellers in this fact-packed guide. Buckle up for the ride!