I was going to recommend the Spellman books and "Dog on it" - if you like the premise of dog perspective, there's another mystery "the Unscratcahbles"
Love the books by Mary Kay Andrews and the Bubbles books by Sarah Stromeyer. The Anne George mysteries - Southern Sisters are very funny.
If the library is out, then check the used book stores and thrift stores, they are jammed with lots of books.
Bill Fitzhugh has written some hysterical books - Pest Control. Also, Eric Garcia -the Rex books.
As mentioned Chistopher Moore is a hoot.
Ghoulishly odd - Pride and Predjudice and Zombies