Yorkshire Terriers may be small and innocent looking, but they are surprisingly strong and intelligent. In fact, they were once used to catch rats in the clothing mills of England. With 13 photographs of adorable Yorkies, this square wall calendar is sure to please anyone who loves these delightful dogs. Includes a free download of the DogDays™ app for the smartphone and tablet, which grants access to the world's most captivating dog photos and backgrounds, fun puzzles, and a calendar featuring your favorite furry friends.