books by subject
Children's Books on Heavy Machinery

Tractor

Digger (Machines at Work)

Wheels Keep Turning: a book about simple machines: 30 (Wonderwise)

The World's Most Unusual Machines (Extreme Machines)

Jumbo Jets (Mighty Machines (Hardcover))

How to Draw Machines (Usborne Pocket Art)

How Machines Work (Children's World)

How to Catapult a Castle: Machines That Brought Down the Battlements (Fact Finders, Extreme)

Dig!: Peek a Flap Children’s Board Book (Peek a Boo Dig! Fun Children's Interactive Lift a Flap Board Book for Ages 0 and Up)

Printing (Usborne How to Guides)

Racing Along (Big Shiny Machines)

Big Machines Rescue!

Hammer at the Construction Site!: 10 Construction Sounds (10 Button Sound)

Ultimate Robot Kit

Trucks (Young machines)

Master Engineer: Robots

Things That Go Let's Get Moving (My First)

Picture the World of Farm Machines

The Ultimate Construction Site Book: From Around the World: 2 (Ultimate Book)

Machines (Understanding Science S.)

On a Building Site (Machines at Work)

The Printing Press (Tales of Invention)

Printing (Usborne How to Guides)

Tractors and Farm Vehicles (Mighty Machines (Paperback))

Walkabouts: Under The Ground

How to Draw Robots and Aliens (Young Artist S.)

How Super Cool Stuff Works

Machines: Gears * Levers * Pulleys * Engines (Exploring Science)

MIGHTY MACHINES ALL AT SEA
