Chicken Soup for the Dog Lover's Soul
I know, "Chicken Soup" books are kinda cheesy, but I love the pet related ones. I read the two earlier one's quite a while ago (Pet Lover's Soul and Cat & Dog Lover's Soul) and this one has been sitting in my bathroom for the last few months. Bathroom books are best when they're bunches of short story type things. That way I don't end up stuck in there when I get all involved in the book.
I just don't get sick of awesome pet stories!