Dog Bits - Say "How-do-You-do"

Dogs are great fun, but if you don't own one, you may not know how to meet one on the street. You also have to consider the issues before you take the responsibility. Books are a non-threatening way to anticipate new scenarios. The following titles give solid pointers:
May I Pet Your Dog? A How-To Guide For Kids Meeting Dogs
A fine guide to say How-Do-You-Do to canine friends.
A Dog's Body: dog body language phrase book helps translate dog behavior for human understanding.
Can we Have One? helps think through what it means to have a pet.
Paws, Claws, Feathers and Fins is a DVD for kids 4-12 years. It points out that taking care of a pet may be fun, but it is also hard work.
For those who enjoy silliness, check Alan Snow's How Dogs Really Work and enjoy the illustrations =)