Cars, Trains, Ships and Planes : Our World in Pictures

Trains Push and Pull: National Geographic science.; Become an Expert., Pushes and Pulls.

All aboard! : National Geographic Science/Explore on Your Own; Pushes and Pulls

Trains ; National Georgaphic Kids Readers Level 1

Thomas ABC book (Thomas & friends)

Down at the docks (Thomas & friends)

Percy the small engine takes the plunge ; a pop-up book

Terrific Trains