The Heart of a Dog is a lovely collection of short stories written by the immortal writer of collie and dog tales, Albert P. Terhune. This book contains a range of heart-warming adventures based around the canine residents of Terhune's Sunnybank kennels and includes the famous Lad. This text is sure to make the reader laugh and cry in equal amounts and is guaranteed to be a challenge to put down. A must-read for any lover of dogs, Terhune's delightful work continues to entertain adults and children alike, imparting life lessons sure to be remembered by his readers for years to come. Albert Payson Terhune was a famous American author, journalist, and dog breeder. We are proud to republish this scarce book with a new introductory biography so that it can be enjoyed by discerning readers for generations to come.