This article reports on the third phase of a project studying the integration of information behavior theories and concepts into professional education for reference and information service (RIS). It also provides a synthesis of the results of all studies in the project, including a syllabus study, an interview study, and the survey. Results of the project show that Kuhlthau's information search process model, along with several other key theories, models, and concepts, is perceived by instructors of introductory RIS courses in North America as important for RIS practice. Instructors feel that students are generally receptive to conceptual content in the course, although most teach a more practice-focused course or a course with a balance of conceptual and practical content. Still, 10-31% of introductory RIS courses do not include any information behavior content, suggesting that the relevance of theory to practice remains an ongoing debate.