This chapter elaborates the nature and worth of mimetic learning, and associated epistemological practices, as enacted in circumstances of professional practice. An account of mimesis (i.e. observation, imitation and action) is important given that much learning across professional working lives, such as when engaging with and being mediated by technology, occurs outside of access to direct guidance or being instructed by others. Therefore, explanatory accounts of these learning and development processes are now required to complement those emphasising direct interpersonal interactions with others, such as through direct instruction and mentoring. Explanations of individuals' personal epistemological practices, such as mimetic learning, are now informed by recent developments in anthropology and cognitive science. So, although standing as perhaps the commonest and long-standing means of learning through and for work, a fresh consideration of mimetic learning is warranted to understand further how initial and ongoing learning in and for the professions arise and can be mediated by technology.