We invite original, unpublished work documenting research contributions, practice and experience, software and toolkits, or systems and novel applications. All topics that are directly or indirectly relevant to spatial user interactions and interfaces are welcome. Topics of interest include, but are not limited to:

Design practices, principles and frameworks
Interaction design, usability and user experience (UX)
User interface metaphors
Evaluation methodologies and metrics
Perception and cognition
Human factors and ergonomics
Ethical, social, cultural and language factors
Inclusion and accessibility
Privacy and security
Empathy, trust, acceptance and safety
Interactive spatial computer graphics
Spatial input devices and technology
Haptics, spatial audio, touch, tangible, gesture based spatial interactions and interfaces
Multimodal/multisensory and other novel forms of spatial interaction and perception
Spatial interaction with data, virtual humans and avatars
Distributed, multi-user and collaborative spatial interaction
Immersive analytics and visualisation
Intelligent spatial interfaces, interaction and collaboration
User adaptive spatial interaction and personalization
Applications of human spatial perception to interaction
Applications of spatial UIs, such as games, entertainment, CAD, education, health, engineering