This study aims to extend our knowledge of organizational anticipatory socialization by examining the antecedents and consequences of learning of new recruits about an organization between the job offer and organizational entry. I collected longitudinal data from a large Japanese manufacturing company and analyzed the socialization programs conducted by the organization and proactive behaviors of new recruits. I found that proactive behaviors are significantly positively related to newcomer learning, while socialization programs have both positive and negative effects on newcomer learning. Moreover, I found that newcomer learning has significant positive effects on the distal organizational outcomes of affective commitment, expectation in the organization, and achievement motivation to work after organizational entry. The implications of these findings for organizational anticipatory socialization are discussed.