“Dog Prisoners” is a campaign aimed at raising awareness to the conditions under which dogs are kept for display in pet shops. Particularly, female dogs are often held in breeding places under bad conditions, forced to keep giving birth to puppies that can be sold at low prices yet maximum profit. Many of these dogs die meaninglessly and painfully every year. This poster uses easy-to-understand pictograms to inform people about these dark aspects of the pet industry. Another objective is to promote and further a more respectful coexistence between humans and pets.