Information: A Very Short Introduction explores the concept of information, central to modern science and society, from thermodynamics and DNA to our use of the mobile phone and the Internet. It moves from a brief look at the mathematical roots of information — its definition and measurement in ‘bits’ — to its role in genetics, and its social meaning and value, before considering the ethics of information, including issues of ownership, privacy, and accessibility; copyright and open source. This VSI also considers concepts such as ‘Infoglut’ (too much information to process) and the emergence of an information society.