The second volume of the report outlines the theoretical framework and the ecology of the Appalachian Adult Education Center (AAEC) demonstrations of the interagency linkages of public library and public school services for disadvantaged adults. The following subjects are considered: (1) workable definitions of services; (2) nature of disadvantaged adults and what those characteristics imply about service needs and delivery; (3) influence of geographic location on service needs; (4) goals of educational and library services in sociological and historical terms; (5) goal displacement; (6) differences in organization of public schools and public libraries, including policy setting, library specialization, adult services for the disadvantaged; (7) public school specialization, adult basic education; (8) usefulness of these specializations in terms of numbers of adults served and effects on their lives; (9) permanence of these specializations; (10) needed changes in specializations; (11) service and financial advantages of coordination to the two institutions; (12) differences in the funding patterns of ABE and libraries; (13) self-selection, role expectations, and personalities of professional staff in the two institutions; (14) effects of accreditation on the goals and services of the two institutions; (15) role of professional associations; (16) combined reasons that coordination does not occur spontaneously. (Author)