The IAS-CSH Connection Workshop will bring together around 20 researchers from the Institute for Analytical Sociology, Linköping University, Sweden, and the Complexity Science Hub for an intensive 2.5-day exchange. The workshop will create a focused setting for presenting ongoing work, identifying shared questions, and developing concrete ideas for future collaboration. We will discuss the many possible connections between IAS expertise and core Hub themes: 1) segregation, migration, and neighborhood effects link well to work on complex social systems and societal development; 2) social networks, belief dynamics, and meaning-making connect to collective adaptation and collective intelligence; 3) computational text analysis, language models, and disaster communication open opportunities for studying communication and coordination under uncertainty; and 4) work on inequality, education, innovation, and cumulative advantage aligns with questions about transformation, resilience, and collapse in social and economic systems.