1. Rachel Botsman and Roo Rogers. 2011. What's mine is yours: how collaborative consumption is changing the way we live. London: Collins. Rachel Botsman and Roo Rogers. 2011. What's mine is yours: how collaborative consumption is changing the way we live. London: Collins.
2. The design of eco-feedback technology
3. Ideology: A Definitional Analysis
4. Jeremy Rifkin. 2011. The third industrial revolution. Palgrave Macmillan. Jeremy Rifkin. 2011. The third industrial revolution. Palgrave Macmillan.