This book constitutes the proceedings of the 4th International Conference onHuman Aspects of IT for the Aged Population, ITAP 2018, held as part of the 20th International Conference, HCI International 2018, which took place in Las Vegas, Nevada, in July 2018. The total of 1171 papers and 160 posters included in the 30 HCII 2018 proceedings volumes was carefully reviewed and selected from 4346 submissions. ITAP 2018 includes a total of 84 papers. They were organized in topical sections as follows: Part I: aging and technology acceptance; aging and interaction; intergenerational communication and social participation. Part II: health care technologies and services for the elderly; intelligent environments for aging; and games and entertainment for the elderly.

This two-volume set constitutes the refereed proceedings of the 8th International Conference on Human Aspects of IT for the Aged Population, ITAP 2022, held as part of the 24th International Conference, HCI International 2022, held as a virtual event, during June-July 2022. ITAP 2022 includes a total of 75 papers, which focus on topics related to designing for and with older users, technology acceptance and user experience of older users, use of social media and games by the aging population, as well as applications supporting health, wellbeing, communication, social participation and everyday activities. The papers are divided into the following topical sub-headings. Part I: Aging, Design and Gamification; Mobile, Wearable and Multimodal Interaction for Aging; Aging, Social Media and Digital Literacy; and Technology Acceptance and Adoption: Barriers and Facilitators for Older Adults Part II: Intelligent Environment for Daily Activities Support; Health and Wellbeing Technologies for the Elderly; and Aging, Communication and Social Interaction.

This two-volume set constitutes the refereed proceedings of the 8th International Conference on Human Aspects of IT for the Aged Population, ITAP 2022, held as part of the 24th International Conference, HCI International 2022, held as a virtual event, during June-July 2022. ITAP 2022 includes a total of 75 papers, which focus on topics related to designing for and with older users, technology acceptance and user experience of older users, use of social media and games by the aging population, as well as applications supporting health, wellbeing, communication, social participation and everyday activities. The papers are divided into the following topical sub-headings. Part I: Aging, Design and Gamification; Mobile, Wearable and Multimodal Interaction for Aging; Aging, Social Media and Digital Literacy; and Technology Acceptance and Adoption: Barriers and Facilitators for Older Adults Part II: Intelligent Environment for Daily Activities Support; Health and Wellbeing Technologies for the Elderly; and Aging, Communication and Social Interaction.

This two-volume set of ITAP 2023, constitutes the refereed proceedings of the 9th International Conference on Human Aspects of IT for the Aged Population, ITAP 2023, held as Part of the 24th International Conference, HCI International 2023, which took place in July 2023 in Copenhagen, Denmark. The total of 1578 papers and 396 posters included in the HCII 2023 proceedings volumes was carefully reviewed and selected from 7472 submissions. The papers of ITAP 2023 Part II are organized in topical sections named: Smart Homes and Aging in Place; eHealth Applications for Older People and Health literacy; IT Support for Caregivers; Aging, ICT Use and Digital Literacy.

This three volume set of LNCS 12207, 12208 and 12209 constitutes the refereed proceedings of the 6th International Conference on Human Aspects of IT for the Aged Population, ITAP 2020, held as part of the 22nd International Conference, HCI International 2020, which took place in Copenhagen, Denmark, in July 2020. The conference was held virtually due to the COVID-19 pandemic. The total of 1439 papers and 238 posters have been accepted for publication in the HCII 2020 proceedings from a total of 6326 submissions. ITAP 2020 includes a total of 104 regular papers which are organized in topical sections named: Involving Older Adults in HCI Methodology , User Experience and Aging, Aging and Mobile and Wearable Devices, Health and Rehabilitation Technologies, Well-being, Persuasion, Health Education and Cognitive Support, Aging in Place, Cultural and Entertainment Experiences for Older Adults, Aging and Social Media, Technology Acceptance and Societal Impact.

The two LNCS volume set 9193-9194 constitutes the refereed proceedings of the First International Conference on Human Aspects of IT for the Aged Population, ITAP 2015, held as part of the 17th International Conference on Human-Computer Interaction, HCII 2015, held in Los Angeles, CA, USA, in August 2015, jointly with 15 other thematically conferences. The total of 1462 papers and 246 posters presented at the HCII 2015 conferences were carefully reviewed and selected from 4843 submissions. These papers of the two volume set address as follows: LNCS 9193, Design for Aging (Part I), addressing the following major topics: HCI design and evaluation methods for the elderly; ICT use and acceptance; aging, the web and social media; and the elderly and mobile devices and LNCS 9194, Design for Everyday Life (Part II), addressing the following major topics: health care technologies and services for the elderly; home and work support; smart environment and AAL; and communication, games, and entertainment.

The two-volume set LNCS 10297 + 10298 constitutes the refereed proceedings of the Third International Conference on Human Aspects of IT for the Aged Population, ITAP 2017, held as part of HCI International 2017 in Vancouver, BC, Canada. HCII 2017 received a total of 4340 submissions, of which 1228 papers were accepted for publication after a careful reviewing process. The 83 papers presented in the two volumes of ITAP 2017 were organized in topical sections as follows: Part I: aging and technology acceptance; user-centred design for the elderly; product design for the elderly; aging and user experience; digital literacy and training. Part II: mobile and wearable interaction for the elderly; aging and social media; silver and intergenerational gaming; health care and assistive technologies and services for the elderly; aging and learning, working and leisure.