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From autistic children making a connection and prisoners letting down their guard, to older people finding companionship and accident victims responding for the first time, therapy dogs leave a lasting paw print on the hearts of everyone they meet. These are ordinary dogs, but they have an extraordinary gift that has been recognised by their owner.

Volunteers with the Delta Society share their stories of the people they have come to know, the lessons they have learned and the ways they have seen first-hand how a bundle of soft fur, a wagging tail and a wet nose can make a difference to someone's life. And information from Delta's dog training specialist will help you identify and enhance special qualities in your own dog.

These are inspiring tales of four-legged heroes that help change countless lives every day.