Book excerpt: The two LNCS volume set 9754-9755 constitutes the refereed proceedings of the Second International Conference on Human Aspects of IT for the Aged Population, ITAP 2016, held as part of the 18th International Conference on Human-Computer Interaction, HCII 2016, held in Toronto, ON, Canada, in July 2016, jointly with 14 other thematically conferences. The total of 1287 papers and 186 poster papers presented at the HCII 2016 conferences were carefully reviewed and selected from 4354 submissions. LNCS 9754, Design for Aging (Part I), addresses the following major topics: designing for and with the elderly; technology use and acceptance by older users; psychological and cognitive aspects of interaction and aging; mobile and wearable technologies for the elderly. LNCS 9755, Healthy and Active Aging (Part II), addresses these major topics: smart and assistive environments; aging and social media; aging, learning, training and games; and aging, mobility and driving.