Overview The International Workshop on Haptic and Audio Interaction Design was - ganized as part of the EPSRC-funded MultiVis project. The main focus of the workshop was to investigate how the modalities of sound and haptics (touch) could be used together in interaction, and what novel interfaces could be p- vided when they are used in conjunction. What are the relative advantages of each of the modalities when used alone and together? Are there reasons why haptic-based information is moreuseful in certain situations than equivalent - dio information? How can di?erent modalities be used...