Ever wondered where all the components of your smartphone came from? How was your smartphone produced, distributed, and then disposed of when it became yesterday’s news by the release of the newest model? What about other products that you consume? How are they part of global commodity chains or systems? And, how are these systems understood, or not? These questions, and many more like them, relate to systems thinking; a way of seeing problems and processes in the world through a lens which recognises the complex whole and web of relationships within systems, rather than on the detail of a particular piece (Fig. 5.1).