Emily Elizabeth describes her big red dog, Clifford, who is really big and has difficulty hiding he's so huge.

Biscuit, a little puppy, and Sam, a big dog, play together despite their difference in size.

Except for his bath, Fergus experiences the perfect doggy day, from chasing cats and motorcycles to being scratched on his favorite tickle spot.

LEVEL 3. Mr. Putter finds it a challenge to paint his front porch in the presence of his cat, Tabby, and his neighbor's dog, Zeke.

LEVEL 1. A puppy does all sorts of tricks in the process of learning the one his master is trying to teach him.

Nancy wants to adopt a special puppy so that she is no longer the only fancy member of her family, but after a day of puppysitting a papillon, she realizes that being fancy is not always the most important thing.

LEVEL 2. An old dog's friendly persistence slowly convinces a young boy to take him home.