books by subject
Children's Books on Heavy Machinery
Amazing Machines: Dazzling Diggers
Title: Aircraft
Supermarionation Cross-sections: Revealing the Secrets of the Craft, Machinery and Settings of Gerry Anderson's Top Series
Mavellous Machinery (Theme Park Science)
Machines (Make it Work! Science S.)
Machines (Make it Work! Science S.)
BUILT FOR SPEED AIRCRAFT
MIGHTY MACHINES ALL AT SEA
Machines: Gears * Levers * Pulleys * Engines (Exploring Science)
How Super Cool Stuff Works
How to Draw Robots and Aliens (Young Artist S.)
Walkabouts: Under The Ground
Tractors and Farm Vehicles (Mighty Machines (Paperback))
Printing (Usborne How to Guides)
The Printing Press (Tales of Invention)
On a Building Site (Machines at Work)
Machines (Understanding Science S.)
The Ultimate Construction Site Book: From Around the World: 2 (Ultimate Book)
Picture the World of Farm Machines
Things That Go Let's Get Moving (My First)
Tractor
Trucks (Young machines)
Ultimate Robot Kit
Master Engineer: Robots
MONSTER MACHINES TRUCKS
The World's Most Unusual Machines (Extreme Machines)
Wheels Keep Turning: a book about simple machines (Wonderwise)
Digger (Machines at Work)
Until I Met Dudley: How everday things really work