[The Conversation Africa] Wake Up, This is Joburg is a collaboration between photographer Mark Lewis and urban planner and writer Tanya Zack. Striking images and beautiful texts follow 10 stories the team discovered in urban Johannesburg, South Africa. Each chapter captures many overlapping stories that come together around a character, a place or an activity. The book is an ethnographic portrait of one of Africa's most vibrant and intriguing cities. We asked for the stories behind six of its images.