In this qualitative case study, we conducted semi-structured, in-depth interviews with 16 Pennsylvania State University librarians who hold, or are considering pursuing, a doctoral degree. Through a thematic analysis using NVivo, we found that the benefits of earning a doctorate included gaining credibility, building relationships with teaching faculty, enhancing research skills, and obtaining a sense of accomplishment. Challenges were primarily related to time management and financial constraints. Supportive advisors and a synergy between library work and doctoral research are important. Libraries benefit from increased knowledge of librarians and can support their doctoral aspirations through financial assistance and flexible work arrangements.