Social Computing and Social Media. Communication and Social Communities 11th International Conference, SCSM 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26-31, 2019, Proceedings, Part II

Human Aspects of IT for the Aged Population. Social Media, Games and Assistive Environments 5th International Conference, ITAP 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26-31, 2019, Proceedings, Part II

Digital Human Modeling and Applications in Health, Safety, Ergonomics and Risk Management. Human Body and Motion 10th International Conference, DHM 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part I

Human Aspects of IT for the Aged Population. Design for the Elderly and Technology Acceptance 5th International Conference, ITAP 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26-31, 2019, Proceedings, Part I

Digital Human Modeling and Applications in Health, Safety, Ergonomics and Risk Management. Healthcare Applications 10th International Conference, DHM 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part II

HCI for Cybersecurity, Privacy and Trust First International Conference, HCI-CPT 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings

Human-Computer Interaction. Design Practice in Contemporary Societies Thematic Area, HCI 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part III

Human-Computer Interaction. Recognition and Interaction Technologies Thematic Area, HCI 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part II

Design, User Experience, and Usability. Design Philosophy and Theory 8th International Conference, DUXU 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part I

Learning and Collaboration Technologies. Designing Learning Experiences 6th International Conference, LCT 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part I

Universal Access in Human-Computer Interaction. Multimodality and Assistive Environments 13th International Conference, UAHCI 2019, Held as Part of the 21st HCI International Conference, HCII 2019, Orlando, FL, USA, July 26–31, 2019, Proceedings, Part II

Persuasive Technology: Development of Persuasive and Behavior Change Support Systems 14th International Conference, PERSUASIVE 2019, Limassol, Cyprus, April 9–11, 2019, Proceedings