Domain wall dynamics is the academic field dedicated to investigating the motion, deformation, and evolution of domain walls—interfaces separating regions of distinct physical order—within condensed matter systems. This discipline explores the fundamental mechanisms governing how these interfaces respond to external stimuli, such as applied electric or magnetic fields, encompassing phenomena like propagation, pinning, nucleation, and interactions. Research in this area frequently employs advanced experimental visualization techniques and theoretical modeling approaches to understand the complex interplay between wall structure, charge, and material properties, with the aim of controlling material functionalities for technological applications.