“…This may be particularly true in today’s world given the high number of households with only one resident, smaller core networks, technology increasing time spent at home, and communication technology changing how solitude may be defined (Campbell & Ross, 2022; Cohen, 2021; Hampton et al, 2011; Vilhelmson et al, 2017). Building on the idea that solitude need not be negative (Coplan, Hipson et al, 2019; Lay et al, 2019), this special issue features research on solitude defined by physical aloneness or an absence of social interaction (Coplan et al, in press; Nikitin & Ristl, in press; Tsang et al, in press; White et al, in press), as well as volitional activities by oneself (positive solitude; Bachman et al, in press).…”