Self-knowledge is conceptualized as a self digest that summarizes one's relations to the world and the personal consequences of these relations. It is a handy sourcebook that serves self-regulatory functions. It is distinguished from the classic notion that self-knowledge contains one descriptive actual self. The self digest contains information about three kinds of actual selves that differ in self-regulatory function: (a) an instrumental self, (b) an expectant self, and (c) a monitored self. It represents not only the actual self but desired (and undesired) selves that reflect different kinds of self-regulatory focus (i.e., promotion or prevention). It represents not only one's own standpoint but also the standpoint of others whose beliefs one is motivated to take into account. This self-regulatory perspective is used to reconsider self-esteem, self-enhancement, self-consistency, self-presentation, and cross-cultural differences in the self.