This course is designed for anyone interested in developing their understanding of the basic concepts of social network theory and how information, viruses, and norms spread through society. It will be particularly useful for professionals dealing with situations where social influences and processes of diffusion play a role, such as in the context of public policy, business, marketing, and healthcare. If you already study social science and would like to develop your skills in maths, computers, and formal modelling, this course will help.