Workers fix a board for a 24 hour self service library in Wuhan, capital of Central China's Hubei province on Feb 23, 2011. Wuhan will open its first 24 hour self service library in March this year. It has a capacity for 700 books which can be automatically retrieved by computer. The machines will be placed at train stations, bus stops and in residential communities. [Photo/Xinhua]

The first 24 hour self service library is set up in Wuhan, capital of Central China's Hubei province on Feb 23, 2011. [Photo/Xinhua]