John Grogan wrote 'Marley and Me' about a mischievous and lovable Labrador Retriever named Marley. The book is a memoir of Grogan's life with Marley, from the moment he brought him home as a puppy to his old age and eventual death. 'Marley and Me' became a bestseller and was later adapted into a film. The book celebrates the joy and challenges of pet ownership and the deep bond that can form between a dog and their human.