The book features Knapp's five-and-a-half-year-old dog, Momo, hiding in various landscapes. It's a sort of "Where's Waldo?" game involving photography and the dog.
"Find Momo," which is 146 pages long, and costs $15, features more than 100 photos of Momo hiding.
The majority of the photos are taken in the Sudbury area, but some were also taken in other places in Ontario and in the New England area, where Knapp went on a road trip last year.
Knapp and Momo are currently on whirlwind book tour for "Find Momo," that will take them across the United States and Canada.
They'll be back home in Sudbury for a book signing on May 31.
To see more of Momo's adventures, visit gofindmomo.com.