Few of the 65 million dog owners in the United States would dispute the notion that a dog's presence in their lives nurtures emotional and physical well-being. But for some people with disabilities, the presence of a highly trained assistance dog in their lives is utterly transformative. Another Language focuses on one year in the life of the NEADS/Dogs For Deaf and Disabled Americans program in north-central Massachusetts, one of the oldest and largest assistance dog training centers in the U.S.

Through profiles that celebrate the healing bonds between service dogs and their people,...