A hawker in Kabul selling goat meat for siri paya, a traditional breakfast dish in parts of South Asia. Hawkers, also known as street vendors, sell merchandise that can be easily transported. They are very common in many countries in Asia. In India, hawkers have formed trade unions in Bengal and Kolkata, and in Singapore and Malaysia, hawkers have become so successful that they have set up more permanent facilities known as hawker centres.Photo: Paul Rudd