This handbook presents major content information that can be useful in the planning of comprehensive professional development programs and individual skill building. It presents curricular modules and professional development units being developed which represent the basic tools for the contemporary practice of both career education and human services. The introduction discusses professional development issues and draws some conclusions about them. Part 1, Career Education and Human Services: Bridging the Gap, presents several abstracts of literature in the areas of school-to-work transition and human services, along with a list of references. Part 2 presents a series of major and representative content areas which could provide the knowledge base for professional development of career education and human services professionals. Such topic areas as community mental health, public affairs, and crisis intervention are analyzed. All content areas are followed by reference lists. A concluding statement and a bibliography on career education are included. (CT)