At the center of attention of this issue is trans-local, transnational, regional, and worldwide contacts inside and outside the Nordic-Baltic region from the late 1800s to the late 1900s. As an introduction, this text attempts to give an overview of some of its major themes and findings. It highlights how the interactive function of cross-border contacts is demonstrated by cases of art and design transfers, artistic travels, Scandinavian intellectual contacts, and cross-border connections over 100 years. Together, the texts published in this issue reflect the interdependent nature of international relations and the vital function of intermediate positions.