My research is in geometric group theory and low-dimensional topology, with particular focus on aspects of non-positive curvature in groups. I am especially interested in groups acting on CAT(0) cube complexes, such as right-angled Artin groups, right-angled Coxeter groups, and graph braid groups. More generally, I am interested in hierarchically hyperbolic groups, which also includes mapping class groups of surfaces and most fundamental groups of 3-manifolds.