I have found a really fun little PI series though the library, have read books 5 and 1, they're detective stories, no worries; apparently, there's 8 now and a pre-quel or two. But it's written by the co-protagonist, the dog. Specfically a 100 lb German Shepherd who failed K9 training, but gets along with his PI, Bernie, just fine.
Chet and Bernie series, by Spencer Quinn. An attempt at the mind of a dog. Quite an entertaining perspective. Uses the word perp a lot, and seems to divide the human world along those lines.