When a bomb-sniffing dog sits down on the job, it means there may be explosives nearby. But to the dog, it only means one thing: a treat is on its way. Bomb-sniffing dogs have saved many lives doing the dangerous work that, to them, is just a game. See these super smellers in action in this fascinating book for growing readers.

Some search-and-rescue dogs are trained to sniff the air for any human scent. Others follow the trail of a specific human scent. But the job of a rescue dog requires more than just smelling. In this book, readers will learn about the training and responsibilities of a wilderness search dog.

Doberman Pinschers can be very intimidating dogs, but they are also loving and friendly. They became famous in World War I and World War II as messenger dogs and search and rescue dogs. Eager readers will learn about the physical characteristics of Doberman Pinschers and how these dogs-affectionately called Dobies-are used today.

Did you know that a Great Dane named George holds the record for the world's tallest dog? Great Danes are large, graceful dogs that sometimes work as service dogs, assisting people who need help walking or balancing. Children will learn about the breed's physical characteristics, its history, and what this big dog is like as a pet.

The presence of a police dog is often enough to discourage a criminal from fleeing. Police dogs are faster than their human handlers, and they are trained to use just enough force to detain troublemakers. See how K-9 units work together to fight crime in this informative title for young readers.

Unlike many working dogs, a guide dog is not praised or rewarded on the job. There should be no distractions when the dog is in work mode. As it teams up with its handler to get from place to place, a guide dog must use its own judgment to decide if a path is safe. In this book, discover the remarkable concentration of a dedicated companion.

Known for their long, floppy ears and sad eyes, people may not know that Basset Hounds have an extraordinary sense of smell. These short-legged dogs were bred to hunt rabbits and are built to track scent trails on the ground. Young readers will learn about the history of Basset Hounds, how their physical features enhance their sense of smell, and how they use their noses today.

Rottweilers almost went extinct at one point in time. Now they are common pets. They were once used to pull carts in the German town of Rottweil, from which they got their name. This title will take kids through the long history of Rottweilers to the present day, where many people cherish Rotties as working dogs and pets.

Dalmatians are known for their sleek white coats dotted with black spots. Extremely loyal and active, Dalmatians love to go on hikes with their owners and do other outdoor activities. Students will trace the Dalmatian's evolution from coach dog to faithful pet.

Because of strong herding instincts, Collies often try to round up animals and people. The movie "Lassie Come Home" featured one of these dependable dogs and made Collies popular pets. Young children will discover why Collies are known for their close companionship.