Four bibliographies pertaining to adult learning and the humanities are presented. The literature search concentrated on materials from the ERIC system, and the bibliographies contain a list of annotated materials followed by a list of citations, which are identified by ED or EJ numbers. In "Adult Learning as a Marketable Product," materials pertain to recent developments in the identification of demand for adult learning, and to the form and content of learning opportunities in the humanities and related areas (especially, the location, timing, and format of the offering). "Support Services/Delivery Systems" reflects the service delivery perspective found in public policy analysis and administration and the role that the support system plays in facilitating adult participation. The following categories are covered: information and referral, outreach functions, finance, counseling, and teacher/staff training and development. The literature cited in "Patterns of Participation" covers facilitators of the impediments to adult learning not covered in the other bibliographies. Subtopics include: evolution of enrollment trends, motivating factors that lead to participation, and assessment of the adult learning profile. "Methodological Issues" includes works chosen on the basis of the quality and potential utility of the survey instrument and/or the research model, including needs assessments, evaluation design, and population profiles studies. (SW)