Designing and Evaluating VAMR Environments -- Narrative Cognition in Mixed Reality Systems: Towards an Empirical Framework -- Exploratory Study on the Use of Augmentation for Behavioural Control in Shared Spaces -- Pose Estimation and Video Annotation Approaches for Understanding Individual and Team Interaction during Augmented Reality-Enabled Mission Planning -- GazeXR: A General Eye-tracking System Enabling Invariable Gaze Data in Virtual Environment -- SpatialViewer: A Remote Work Sharing Tool that Considers Intimacy Among Workers -- A Review of Virtual Therapists in Anxiety and Phobias Alleviating Applications -- Designing Limitless Path in Virtual Reality Environment -- A Comparative Study of Conversational Proxemics for Virtual Agents -- Real-time Data Analytics of COVID Pandemic using Virtual Reality -- Design Considerations for Interacting and Navigating with 2 Dimensional and 3 Dimensional Medical Images in Virtual, Augmented and Mixed Reality Medical Applications -- Virtual Reality Sickness Evaluation in Exergames for Older Hypertensive Patients: A Comparative Study of Training Methods in a Virtual Environment -- Consistency in Multi-device Service including VR : A Case Study -- Multimodal and Natural Interaction in VAMR -- The Effect of Body-Based Haptic Feedback on Player Experience during VR Gaming -- User Defined Walking-in-place Gestures for Intuitive Locomotion in Virtual Reality -- Exploring Human-to-Human Telepresence and the Use of Vibro-Tactile Commands to Guide Human Streamers -- Pseudo-haptic Perception in Smartphones Graphical Interfaces: a Case Study -- A Research on Sensing Localization & Orientation of Objects in VR with Facial Vibrotactile Display -- HaptMR: Smart Haptic Feedback for Mixed Reality based on Computer Vision Semantic -- Position Estimation of Occluded Fingertip based on Image of Dorsal Hand from RGB Camera -- Head-mounted Displays and VR Glasses -- Usability and User Experience of Interactions on VR-PC, HoloLens 2, VR Cardboard and AR Smartphone in a Biomedical Application -- Simulation of the Field of View in AR and VR Headsets -- Exploring Perspective Switching in Immersive VR for Learning First Aid in Lower Secondary Education -- Beyond Visible Light: User and Societal Impacts of Egocentric Multispectral Vision -- No One is Superman: 3-D Safety Margin Profiles when Using Head-Up display (HUD) for Takeoff in Low Visibility and High Crosswind Conditions -- Robust Camera Motion Estimation for Point-of-View Video Stabilization -- Rendering Tree Roots Outdoors: A Comparison between Optical See Through Glasses and Smartphone Modules for Underground Augmented Reality Visualization -- Using Head-Mounted Displays for Virtual Reality: Investigating Subjective Reactions to Eye-Tracking Scenarios -- Omnidirectional Flick View -- VAMR Applications in Design, the Industry and the Military -- Virtual Fieldwork: Designing Augmented Reality Applications using Virtual Reality Worlds -- Contextually Adaptive Multimodal Mixed Reality Interfaces for Dismounted Operator Teaming with Unmanned System Swarms -- Virtual Solutions for Gathering Consumer Feedback on Food: A Literature Review and Analysis -- Modernizing Aircraft Inspection: Conceptual Design of an Augmented Reality Inspection Support Tool -- The Potential of Augmented Reality for Remote Support -- A Review of Distributed VR Co-Design Systems -- The Mobile Office: A Mobile AR Systems for Productivity Applications in Industrial Environments -- Virtual Reality Compensatory Aid for Improved Weapon Splash-Zone Awareness -- Mixed Reality Visualization of Friendly vs Hostile Decision Dynamics -- Doing versus Observing: Virtual Reality and 360-degree Video for Training Manufacturing Tasks -- VAMR in Learning and Culture -- Design and Research on the Virtual Simulation Teaching Platform of Shanghai Jade Carving Techniques Based on Unity 3d Technology -- IME VR: an MVC Framework for Military Training VR Simulators -- Extended Reality, Pedagogy, and Career Readiness: A Review of Literature -- Development of an AR Training Construction System using Embedded Information in a Real Environment -- LibrARy - Enriching the Cultural Physical Spaces with Collaborative AR Content -- Supporting Embodied and Remote Collaboration in Shared Virtual Environments -- A Survey on Applications of Augmented, Mixed and Virtual Reality for Nature and Environment -- Flexible Low-Cost Digital Puppet System -- Mixed Reality Technology Capabilities for Combat-Casualty Handoff Training.

This book constitutes the refereed proceedings of the 13th International Conference on Virtual, Augmented and Mixed Reality, VAMR 2021, held virtually as part of the 23rd HCI International Conference, HCII 2021, in July 2021. The total of 1276 papers and 241 posters included in the 39 HCII 2021 proceedings volumes was carefully reviewed and selected from 5222 submissions. The 47 papers included in this volume were organized in topical sections as follows: designing and evaluating VAMR environments; multimodal and natural interaction in VAMR; head-mounted displays and VR glasses; VAMR applications in design, the industry and the military; and VAMR in learning and culture.