The Bookshop Dog intrigues me. I found the book at a used bookstore. It’s not new (copyright 1996), but new to me. Cynthia Rylant 
A young lady takes her dog everywhere, even to work. She owned a bookstore and name it after her dog, Martha Jane’s bookshop. Her customers loved the dog and business was flourishing.
A dilemma arises when the lady has to go to the hospital. Several customers wanted to keep Martha. It was Martha who chose her handler – one man who visited the bookshop weekly. I think this book is a great example of how a decision creates the problem in the story.
Savorings for reading and in writing for The Bookshop Dog:
- Play on words
- Magic of 3 – postman, policeman, band director
- Problem/ Solution
- Character traits
Book Savors 
I enjoyed learning about this book. It’s still available, & Cynthia Rylant is such a good writer that I imagine I’ll love it as you seem to. Thanks for telling about it!