Multitasking is a frequent part of everyday life, requiring us to switch between different tasks or engage in multiple tasks simultaneously. Such situations place high demands on cognitive control. A key aspect of this control is the regulation of task sets: internal representations that guide behavior in accordance with current task demands. Using task switching, probe task and dual-tasking methods, this symposium brings together different paradigms for investigating the flexible control of task sets, thereby integrating different perspectives on the preparation, inhibition, and adaptation of task sets. We present studies on how task sets are shaped by anticipatory processes, how they may be suppressed to reduce interference, and how control mechanisms flexibly adjust based on recent experience or contextual demands. The individual talks address a range of questions within this framework: one study investigates inhibitory processes triggered by mere task preparation; another explores how changes in cue-task mappings affect reconfiguration after practice. A third contribution examines the origins of asymmetries in task switching involving different perspectives. Extending the focus to situations involving overlapping task demands, further talks investigate the dissipation of dual-task representations and how sequential demands modulate control in dual-task settings. Together, the symposium provides an integrative perspective on the dynamic regulation of task sets and aims to advance our understanding of the cognitive mechanisms that support cognitive flexibility and efficient multitasking in complex environments.