It is next to impossible to read a book about a dog and not feel better after you finish. This is definitely true when it comes to Ball by Mary Sullivan. Nearly wordless, the story shows how the life of this dog revolves around its human and the love of playing ball.
And for more furry canine tales, check out one of these recommendations:
Bark, George by Jules Feiffer
Nubs: The True Story of a Mutt, a Marine, & a Miracle by Brain Dennis