There is a really good author named Jon Katz who writes about his dogs. I have read A Dog Year : Twelve Months, Four Dogs, and Me and liked it, and he also wrote two other books about his dogs: The New Work of Dogs: Tending to Life, Love, and Family and The Dogs of Bedlam Farm : An Adventure with Sixteen Sheep, Three Dogs, Two Donkeys, and Me
One dog book I have on my to-be-read list is What the Dog Did : Tales from a Formerly Reluctant Dog Owner by Emily Yoffe. I have read her writing on msn and she is very funny, and the one excerpt I read online was hilarious.