Three speakers from the University of Oxford, Felix Reed-Tsochas, Mark Fricker and Jukka-Pekka Onnela, give an introduction and overview of the science of networks focussing on two areas: social and biological networks. Consider the following phenomena - the spread of a fungus to acquire nutrients, links between venture capital funders and innovative ideas, the pattern of email and phone traffic within organisations. It has been dicovered that some of these phenomena can be understood, modelled and applied to the design of more effective business networks and systems.