In this chapter, we review implicit person memory: studies using implicit measures to examine how evaluations of and beliefs about individual human targets are acquired and how they shift in the face of new information. In doing so we distinguish between papers that have (a) used implicit person memory as a case study of relatively domain-general processes in the acquisition and change of implicit evaluations and beliefs vs. (b) investigated implicit person memory by attempting to identify processes specific to learning about social targets. The former subset of implicit person memory work emphasizes questions about the inputs to implicit attitude acquisition and change (e.g., approach/avoidance training, evaluative conditioning, and verbal statements) and the features of such inputs relevant to updating (e.g., co-occurrence vs. relational information). By contrast, the themes emerging from the second, more uniquely social, subset of implicit person memory work include the interplay between individual-level and category-level information, the role of facial cues, diagnostic narrative information, and the reinterpretation of previously encountered behavioral evidence about a person. Against this general theoretical backdrop as well as the apparent contradiction between the two sets of empirical studies, we ask whether a domain-specific account of implicit person memory is worth proposing and defending. We also address other topics that are yet to be settled in this area. These topics include differing definitions of what it means for a learning process to be effective, conditions of encoding, and probably the thorniest issue of all: the content and format of the mental representations mediating implicit person memory and, more generally, implicit social cognition.