Argumentation dynamics has become a hot topic in recent years in the argumentation community, with several applications in the context of multi-agent systems: negotiation, persuasion between agents, online debate platforms, benefit from advances on this topic. Argumentation dynamics has in addition strong connections with well-established reasoning research areas, such as belief change. At a high level, argumentation dynamics consists in taking into account some constraint about an argumentation system (e.g. some attack must be added or some argument must be accepted) that an agent wants to enforce, and in modifying this argumentation system to make the constraint satisfied by it. In this tutorial, we review the existing approaches for argumentation dynamics. We classify them depending on the kind of constraint which is considered, and how the framework is modified to make the constraint satisfied. We show how this classification highlights open questions for future work about argumentation dynamics.