“…Even in books on human-machine communication, ethos is almost completely absent (Guzman, 2018;Guzman et al, 2023). One single exception exists in these booksa chapter on the rhetoric of social robots, in which Fritz (2018) relates how ethos is important for social robots, as also recognised by the companies developing robots such as the social robot Jibo. Jibo's creators see ethos as instrumental in their design and marketing strategies, and have developed a set of "value statements" to guide developers and engineers, describing how Jibo, for example, is curious, strives to belong, needs his family, etc.…”