This study collected data on personality characteristics, job satisfaction, and career satisfaction from more than 1,300 information professionals. Respondents included academic reference librarians, archivists, catalogers, distance education librarians, public librarians, records managers, school media specialists, special librarians, systems librarians, and other information professionals who responded to listserv requests or picked up questionnaires at a national library conference. Significant correlations were obtained between personality variables and both career and job satisfaction. Stepwise regression analyses were performed, revealing that five variables (Optimism, Emotional Stability, Teamwork, Visionary Work Style, and Work Drive) accounted for 20 percent of the variance in job satisfaction. Four variables accounted for 19 percent of the variance in career satisfaction (Optimism, Work Drive, Emotional Resilience, and Assertiveness). Hierarchical regression analyses were performed to test Lounsbury et al.'s general composite measure of Emotional Resilience, Work Drive, and Optimism as predictors of job and career satisfaction. These variables accounted for 18 percent of the variance in job satisfaction and 19 percent of the variance in career satisfaction. Recommendations for employers to help with hiring and managing information professionals were made.