Thereby Hangs a Tail by Spencer Quinn

In this book Bernie and Chet's new case is to protect a show dog who's recently received a threat. Generally, the dog-as-narrator bit works pretty well, although there are times when I'm frustrated that Chet can't communicate with words, and times when I'd like more information that Chet can't know or understand. However, this conceit keeps the author from doing that annoying thing where the detective shares that he or she is having thoughts but not the content of those thoughts. The story was pretty well plotted, and there were plenty of good red herrings to be dealt with. Overall, an enjoyable read.

Dog On It by Spencer Quinn

In this mystery Chet the dog narrates the case of a missing girl. I really loved the interactions between Chet and Bernie, the dog's point of view (great perception and difficulty communicating that perception with his owner, Bernie), and the emplotment of the mystery. The idea of having a dog narrate is a bit gimmicky, but overall the book came off as endearing.