Pebble plus. Mighty machines

Simple text and photographs present cranes and the work they do.

Simple text and photographs present concrete mixers and the work they do.

Photographs and simple text written in both English and Spanish describe various motorcycles, their parts, and what they do.

Simple text and photographs describe street sweepers, their parts, and their jobs.

Simple text and photographs describe trains, their parts, and what they do. Presented in English and Spanish.

Text and photographs describe Humvees, their parts, and what these military vehicles do.

Photographs and simple text describe naval destroyers and their purpose in the U.S. military.

Simple text and color photos show how bulldozers work and what kinds of jobs they do.

Simple text and photographs present backhoes and the work they do.