A guide dog and its handler are a well-trained team-four paws padding down the street next to two feet. The furry worker starts, stops, and turns in sync with its owner. It acts as eyes to spot a low-hanging branch, a car zooming down the street, or an obstacle in the middle of the path. Learn all about these heroic dogs.

Four-legged guide -- A second set of eyes -- The perfect pups -- A family start -- Training time -- A perfect match -- The team together -- Building a new life -- A job well done -- Meet a real guide dog -- Glossary -- Index -- Read more -- Learn more online -- About the author.