A day in the life of a Johannesburg book 'hustler'
In recent years sales of digital books have expanded rapidly, but in many parts of the world the paperback is still king.
In downtown Johannesburg, there are at least 55 book dealers selling mainly second-hand books, from market stalls and informal stands, close to the train station.
It is a competitive business and an important one that helps those who cannot afford to pay the full price for books in the suburbs get their fix of novels, motivation and religious reads.
BBC News met one man who goes to extraordinary lengths to ensure people get an affordable read.
Video journalist: Christian Parkinson