You can't call a book The Mystery Shopping Cart without putting a shopping cart on the cover. I choice this image because I thought the watery cart with its sense of reflection and curious circumstance was intriguing. For the design I doubled this sense of reflection by making the cart mirror itself in the front and back covers.
The challenge with the text was that the title was so long. I used different sizes and weights to create a balanced look that loosely follows the lines of the trees. I small caped the subtitle and added some style and colour with Anita's name.