Traditionally, network interactions between pairs. For example, in a power network a power line (mathematically an “edge”) connects a generator (e.g., a power plant) to a user (e.g., your toaster). By contrast, “higher-order” network interactions are interactions beyond edges: For example, social interactions of humans are different whether we are in pairs or groups of three or more. The theme ‘Higher-Order Networks’—sponsored by the doctoral network BeyondTheEdge—introduces higher-order networks and dynamics