Networks matter! This holds for technical infrastructures, information systems and social media in the WWW, but also for various social, economic and biological systems. What can we learn from data that capture the topology of such complex systems? How can we discover significant patterns in the structure of networks? This course equips you with the analysis techniques needed to answer such questions based on network data across different disciplines. You learn how networked systems can be modeled, how patterns in their topology can be characterized quantitatively, and how complex macroscopic features emerge from simple processes.